./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:27:03,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:27:04,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 22:27:04,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:27:04,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:27:04,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:27:04,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:27:04,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:27:04,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:27:04,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:27:04,037 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:27:04,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:27:04,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:27:04,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:27:04,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:27:04,040 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:27:04,040 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:27:04,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:27:04,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:27:04,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:27:04,043 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:27:04,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:27:04,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:27:04,044 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:27:04,045 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:27:04,045 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:27:04,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:27:04,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:27:04,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:27:04,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:27:04,048 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:27:04,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:27:04,048 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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2023-12-02 22:27:04,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:27:04,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:27:04,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:27:04,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:27:04,265 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:27:04,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-12-02 22:27:07,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:27:07,342 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:27:07,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-12-02 22:27:07,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/df9fa5364/ba41f8ee053c42639ea22aba5649f109/FLAG18067e02a [2023-12-02 22:27:07,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/df9fa5364/ba41f8ee053c42639ea22aba5649f109 [2023-12-02 22:27:07,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:27:07,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:27:07,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:27:07,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:27:07,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:27:07,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcd8d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07, skipping insertion in model container [2023-12-02 22:27:07,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:27:08,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:27:08,115 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:27:08,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:27:08,311 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:27:08,318 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:27:08,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08 WrapperNode [2023-12-02 22:27:08,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:27:08,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:27:08,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:27:08,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:27:08,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,431 INFO L138 Inliner]: procedures = 282, calls = 351, calls flagged for inlining = 26, calls inlined = 40, statements flattened = 1725 [2023-12-02 22:27:08,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:27:08,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:27:08,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:27:08,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:27:08,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:27:08,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:27:08,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:27:08,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:27:08,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:27:08,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:27:08,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:27:08,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:27:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:27:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:27:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:27:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:27:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 22:27:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 22:27:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:27:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:27:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:27:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:27:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:27:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:27:08,823 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:27:08,825 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:27:10,237 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:27:11,752 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:27:11,753 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 22:27:11,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:11 BoogieIcfgContainer [2023-12-02 22:27:11,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:27:11,756 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:27:11,756 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:27:11,765 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:27:11,765 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:11" (1/1) ... [2023-12-02 22:27:11,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:27:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 209 states and 330 transitions. [2023-12-02 22:27:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-12-02 22:27:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:27:11,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:11,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:12,007 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 22:27:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 208 states and 325 transitions. [2023-12-02 22:27:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 325 transitions. [2023-12-02 22:27:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:27:12,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:12,180 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 22:27:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 210 states and 328 transitions. [2023-12-02 22:27:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 328 transitions. [2023-12-02 22:27:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 22:27:12,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:12,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:12,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:27:12,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:12,380 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 22:27:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 209 states and 317 transitions. [2023-12-02 22:27:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 317 transitions. [2023-12-02 22:27:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:27:12,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:12,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:12,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:27:12,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:12,516 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 22:27:12,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 209 states and 315 transitions. [2023-12-02 22:27:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 315 transitions. [2023-12-02 22:27:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:27:12,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:12,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:12,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:27:12,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:12,668 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 22:27:22,692 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 22:27:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 209 states and 313 transitions. [2023-12-02 22:27:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 313 transitions. [2023-12-02 22:27:22,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 22:27:22,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:23,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:27:23,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:23,762 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 22:27:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 206 states and 310 transitions. [2023-12-02 22:27:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 310 transitions. [2023-12-02 22:27:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:27:23,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:24,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 22:27:24,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:24,183 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 22:27:34,485 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 22:27:44,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:27:54,544 WARN L539 Checker$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 22:28:04,572 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 22:28:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 224 states and 332 transitions. [2023-12-02 22:28:04,898 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 332 transitions. [2023-12-02 22:28:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:28:04,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:05,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:28:05,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:05,109 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 22:28:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:05,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 223 states and 319 transitions. [2023-12-02 22:28:05,196 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 319 transitions. [2023-12-02 22:28:05,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:28:05,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:05,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:05,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:28:05,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:05,423 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 22:28:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 223 states and 318 transitions. [2023-12-02 22:28:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 318 transitions. [2023-12-02 22:28:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:28:05,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:05,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:05,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:28:05,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:05,797 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 22:28:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 217 states and 309 transitions. [2023-12-02 22:28:05,809 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 309 transitions. [2023-12-02 22:28:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:28:05,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:05,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:06,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:28:06,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:06,019 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 22:28:16,031 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 22:28:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 217 states and 307 transitions. [2023-12-02 22:28:16,099 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 307 transitions. [2023-12-02 22:28:16,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:28:16,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:16,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:16,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:28:16,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:16,454 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 22:28:27,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:28:37,177 WARN L539 Checker$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 22:28:47,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:28:57,228 WARN L539 Checker$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 22:28:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 230 states and 323 transitions. [2023-12-02 22:28:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 323 transitions. [2023-12-02 22:28:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 22:28:57,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:57,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 22:28:57,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:57,564 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 22:29:07,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:29:17,607 WARN L539 Checker$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 22:29:27,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:29:37,681 WARN L539 Checker$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 22:29:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:29:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 233 states and 325 transitions. [2023-12-02 22:29:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 325 transitions. [2023-12-02 22:29:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:29:37,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:29:37,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:29:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:29:37,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:29:37,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:29:38,034 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 22:29:48,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:29:58,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:08,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:18,145 WARN L539 Checker$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 22:30:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:30:18,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 236 states and 327 transitions. [2023-12-02 22:30:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2023-12-02 22:30:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 22:30:18,181 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:30:18,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:30:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:30:18,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:30:18,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:30:18,543 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 22:30:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:30:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 248 states and 343 transitions. [2023-12-02 22:30:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 343 transitions. [2023-12-02 22:30:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 22:30:18,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:30:18,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:30:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:30:19,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:30:19,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:30:19,069 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 22:30:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:30:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 247 states and 338 transitions. [2023-12-02 22:30:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2023-12-02 22:30:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 22:30:19,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:30:19,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:30:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:30:19,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:30:19,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:30:19,439 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 22:30:30,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:40,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:50,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:31:00,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:31:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 262 states and 356 transitions. [2023-12-02 22:31:00,478 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 356 transitions. [2023-12-02 22:31:00,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 22:31:00,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:00,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:31:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:01,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:31:01,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:02,074 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 22:31:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 263 states and 357 transitions. [2023-12-02 22:31:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 357 transitions. [2023-12-02 22:31:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 22:31:02,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:02,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:31:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:08,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 22:31:08,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:31:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 264 states and 358 transitions. [2023-12-02 22:31:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 358 transitions. [2023-12-02 22:31:09,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 22:31:09,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:31:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:09,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:31:09,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:10,075 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 22:31:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 265 states and 359 transitions. [2023-12-02 22:31:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 359 transitions. [2023-12-02 22:31:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 22:31:10,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:31:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:12,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 22:31:12,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:31:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 266 states and 360 transitions. [2023-12-02 22:31:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 360 transitions. [2023-12-02 22:31:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:31:13,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:31:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:31:23,578 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 22:31:23,581 INFO L158 Benchmark]: Toolchain (without parser) took 256196.96ms. Allocated memory was 201.3MB in the beginning and 312.5MB in the end (delta: 111.1MB). Free memory was 152.3MB in the beginning and 118.2MB in the end (delta: 34.1MB). Peak memory consumption was 148.3MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,581 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:31:23,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 934.18ms. Allocated memory is still 201.3MB. Free memory was 152.3MB in the beginning and 157.1MB in the end (delta: -4.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.70ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 145.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,583 INFO L158 Benchmark]: Boogie Preprocessor took 111.23ms. Allocated memory is still 201.3MB. Free memory was 145.6MB in the beginning and 135.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,583 INFO L158 Benchmark]: RCFGBuilder took 3210.31ms. Allocated memory was 201.3MB in the beginning and 257.9MB in the end (delta: 56.6MB). Free memory was 135.1MB in the beginning and 192.1MB in the end (delta: -57.0MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,584 INFO L158 Benchmark]: CodeCheck took 251824.64ms. Allocated memory was 257.9MB in the beginning and 312.5MB in the end (delta: 54.5MB). Free memory was 191.1MB in the beginning and 118.2MB in the end (delta: 72.9MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2023-12-02 22:31:23,586 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 0.20ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 934.18ms. Allocated memory is still 201.3MB. Free memory was 152.3MB in the beginning and 157.1MB in the end (delta: -4.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.70ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 145.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.23ms. Allocated memory is still 201.3MB. Free memory was 145.6MB in the beginning and 135.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3210.31ms. Allocated memory was 201.3MB in the beginning and 257.9MB in the end (delta: 56.6MB). Free memory was 135.1MB in the beginning and 192.1MB in the end (delta: -57.0MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. * CodeCheck took 251824.64ms. Allocated memory was 257.9MB in the beginning and 312.5MB in the end (delta: 54.5MB). Free memory was 191.1MB in the beginning and 118.2MB in the end (delta: 72.9MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:31:23,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:31:25,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:31:25,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 22:31:25,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:31:25,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:31:25,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:31:25,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:31:25,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:31:25,648 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:31:25,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:31:25,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:31:25,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:31:25,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:31:25,651 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:31:25,652 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:31:25,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:31:25,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:31:25,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:31:25,654 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:31:25,655 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:31:25,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:31:25,656 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:31:25,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:31:25,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:31:25,658 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:31:25,659 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:31:25,659 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:31:25,659 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:25,660 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:31:25,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:31:25,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:31:25,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:31:25,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:31:25,661 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:31:25,662 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:25,662 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:31:25,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:31:25,662 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_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2023-12-02 22:31:25,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:31:25,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:31:25,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:31:25,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:31:25,984 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:31:25,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-12-02 22:31:28,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:31:29,114 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:31:29,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-12-02 22:31:29,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/fbe98aeef/d54176eb8481457ca4cafb24b46cdb03/FLAGb20b3ac42 [2023-12-02 22:31:29,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/data/fbe98aeef/d54176eb8481457ca4cafb24b46cdb03 [2023-12-02 22:31:29,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:31:29,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:31:29,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:31:29,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:31:29,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:31:29,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:31:29" (1/1) ... [2023-12-02 22:31:29,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d922521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:29, skipping insertion in model container [2023-12-02 22:31:29,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:31:29" (1/1) ... [2023-12-02 22:31:29,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:31:29,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:31:29,914 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 22:31:29,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:31:30,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:31:30,078 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:31:30,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:31:30,211 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:31:30,217 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:31:30,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30 WrapperNode [2023-12-02 22:31:30,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:31:30,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:31:30,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:31:30,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:31:30,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,331 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 26, calls inlined = 40, statements flattened = 1390 [2023-12-02 22:31:30,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:31:30,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:31:30,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:31:30,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:31:30,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:31:30,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:31:30,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:31:30,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:31:30,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:31:30" (1/1) ... [2023-12-02 22:31:30,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:31:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:31:30,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:31:30,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:31:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:31:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:31:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:31:30,782 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:31:30,785 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:31:45,560 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:31:46,046 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:31:46,046 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 22:31:46,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:31:46 BoogieIcfgContainer [2023-12-02 22:31:46,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:31:46,049 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:31:46,049 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:31:46,058 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:31:46,058 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:31:46" (1/1) ... [2023-12-02 22:31:46,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:31:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 209 states and 330 transitions. [2023-12-02 22:31:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-12-02 22:31:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:31:46,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:46,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:46,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:46,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:31:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:46,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:46,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:46,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:46,611 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 22:31:46,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:31:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 208 states and 325 transitions. [2023-12-02 22:31:46,664 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 325 transitions. [2023-12-02 22:31:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:31:46,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:46,667 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:46,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:46,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:46,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:31:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:46,988 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:47,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:31:47,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:47,196 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 22:31:47,200 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:31:47,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-02 22:31:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:47,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 215 states and 335 transitions. [2023-12-02 22:31:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 335 transitions. [2023-12-02 22:31:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:31:47,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:47,636 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:47,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:47,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:47,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 22:31:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:47,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:48,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:48,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:48,033 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 22:31:48,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 22:31:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 214 states and 330 transitions. [2023-12-02 22:31:48,045 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 330 transitions. [2023-12-02 22:31:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 22:31:48,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:48,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:48,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:48,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:48,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 22:31:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:48,378 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:48,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 22:31:48,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:48,636 INFO L349 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2023-12-02 22:31:48,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 102 [2023-12-02 22:31:48,653 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,654 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,655 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2023-12-02 22:31:48,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,712 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:31:48,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2023-12-02 22:31:48,876 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 22:31:48,878 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2023-12-02 22:31:48,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2023-12-02 22:31:48,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2023-12-02 22:31:49,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 22:31:49,038 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 22:31:49,070 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 22:31:49,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 22:31:49,077 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:31:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 215 states and 330 transitions. [2023-12-02 22:31:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 330 transitions. [2023-12-02 22:31:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 22:31:50,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:50,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:50,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:50,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:50,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 22:31:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:50,463 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:50,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:50,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:50,587 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 22:31:50,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-02 22:31:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 214 states and 319 transitions. [2023-12-02 22:31:50,596 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 319 transitions. [2023-12-02 22:31:50,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:31:50,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:50,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:50,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:50,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 22:31:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:50,885 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:51,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:51,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:51,013 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 22:31:51,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-02 22:31:51,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 214 states and 317 transitions. [2023-12-02 22:31:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 317 transitions. [2023-12-02 22:31:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:31:51,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:51,023 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:51,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:51,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 22:31:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:51,389 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:51,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:51,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:51,549 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 22:31:51,553 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:31:51,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 22:31:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 214 states and 315 transitions. [2023-12-02 22:31:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 315 transitions. [2023-12-02 22:31:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 22:31:51,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:51,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:51,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:51,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:51,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 22:31:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:52,059 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:52,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:31:52,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:52,408 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 22:31:52,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 22:31:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 230 states and 337 transitions. [2023-12-02 22:31:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 337 transitions. [2023-12-02 22:31:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 22:31:54,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:54,243 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:54,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:54,244 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:54,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 22:31:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:54,599 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:54,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:54,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:54,773 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 22:31:54,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 22:31:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 230 states and 335 transitions. [2023-12-02 22:31:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 335 transitions. [2023-12-02 22:31:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:31:54,788 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:54,788 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:54,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:54,789 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:54,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 22:31:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:55,146 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:55,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:31:55,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:55,404 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 22:31:55,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 22:31:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 233 states and 337 transitions. [2023-12-02 22:31:55,422 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 337 transitions. [2023-12-02 22:31:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:31:55,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:55,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:55,427 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:55,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 22:31:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:55,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:56,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:31:56,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:56,155 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 22:31:56,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 22:31:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:31:57,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 232 states and 324 transitions. [2023-12-02 22:31:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 324 transitions. [2023-12-02 22:31:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:31:57,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:31:57,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:31:57,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:31:57,018 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:31:57,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 22:31:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:57,512 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:31:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:31:57,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:31:57,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:31:57,892 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 22:31:57,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 22:32:07,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:32:12,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:32:22,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:32:32,533 WARN L539 Checker$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 22:32:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:32,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 236 states and 327 transitions. [2023-12-02 22:32:32,562 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2023-12-02 22:32:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:32:32,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:32,563 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:32,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:32,564 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:32,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 22:32:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:33,128 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:33,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:32:33,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:33,464 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 22:32:33,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 22:32:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 247 states and 339 transitions. [2023-12-02 22:32:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 339 transitions. [2023-12-02 22:32:34,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 22:32:34,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:34,333 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:34,334 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:34,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 22:32:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:34,841 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:35,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:32:35,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:35,092 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 22:32:35,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 22:32:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 241 states and 330 transitions. [2023-12-02 22:32:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 330 transitions. [2023-12-02 22:32:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:32:35,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:35,148 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:35,149 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:35,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 22:32:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:35,735 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:36,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:32:36,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:36,181 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 22:32:36,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-02 22:32:36,187 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:32:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 244 states and 332 transitions. [2023-12-02 22:32:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 332 transitions. [2023-12-02 22:32:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 22:32:36,208 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:36,208 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:36,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:36,209 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:36,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 22:32:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:36,863 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:37,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:32:37,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:37,322 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 22:32:37,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 22:32:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 245 states and 333 transitions. [2023-12-02 22:32:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 333 transitions. [2023-12-02 22:32:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 22:32:37,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:37,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:37,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:37,470 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:37,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 22:32:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:38,232 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:38,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:32:38,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:38,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 22:32:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 246 states and 334 transitions. [2023-12-02 22:32:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2023-12-02 22:32:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:32:39,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:39,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:39,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:39,056 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:39,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 22:32:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:39,799 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:40,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:32:40,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 22:32:40,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 22:32:49,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:32:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 247 states and 335 transitions. [2023-12-02 22:32:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 335 transitions. [2023-12-02 22:32:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 22:32:50,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:50,007 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:50,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:50,007 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:50,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 22:32:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:50,755 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:51,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:32:51,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:51,236 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 22:32:51,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-12-02 22:33:01,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 248 states and 336 transitions. [2023-12-02 22:33:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 336 transitions. [2023-12-02 22:33:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 22:33:01,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:01,844 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:01,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:01,845 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:01,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 22:33:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:02,743 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:03,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:33:03,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:33:03,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 22:33:06,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:08,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:10,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 262 states and 354 transitions. [2023-12-02 22:33:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 354 transitions. [2023-12-02 22:33:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 22:33:10,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:10,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:10,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:10,344 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:10,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 22:33:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:11,216 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:11,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:33:11,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:33:11,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 22:33:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 261 states and 349 transitions. [2023-12-02 22:33:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 349 transitions. [2023-12-02 22:33:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:33:12,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:12,199 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:12,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:12,200 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:12,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 22:33:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:13,419 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:13,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:33:13,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:13,972 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 22:33:13,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 22:33:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:14,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 262 states and 350 transitions. [2023-12-02 22:33:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 350 transitions. [2023-12-02 22:33:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 22:33:14,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:14,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:14,743 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:14,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 22:33:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:15,952 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:16,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:33:16,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:33:16,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-12-02 22:33:24,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 263 states and 351 transitions. [2023-12-02 22:33:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 351 transitions. [2023-12-02 22:33:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 22:33:24,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:24,283 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:24,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:24,284 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:24,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 22:33:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:25,495 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:25,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:33:25,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:33:26,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 22:33:31,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 264 states and 352 transitions. [2023-12-02 22:33:31,596 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 352 transitions. [2023-12-02 22:33:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 22:33:31,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:31,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:31,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:31,597 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:31,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 22:33:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:32,986 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:33,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:33:33,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:33,625 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 22:33:33,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 22:33:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 265 states and 353 transitions. [2023-12-02 22:33:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 353 transitions. [2023-12-02 22:33:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 22:33:34,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:34,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:34,503 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:34,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 22:33:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:35,803 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:36,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:33:36,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:36,420 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 22:33:36,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 22:33:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:37,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 266 states and 354 transitions. [2023-12-02 22:33:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 354 transitions. [2023-12-02 22:33:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 22:33:37,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:37,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:37,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:37,391 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:37,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 22:33:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:38,886 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:39,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:33:39,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:39,549 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 22:33:39,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 22:33:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 267 states and 355 transitions. [2023-12-02 22:33:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 355 transitions. [2023-12-02 22:33:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 22:33:40,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:40,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:40,565 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:40,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 22:33:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:42,220 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:42,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:33:42,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:42,930 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 22:33:42,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 22:33:53,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:54,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 268 states and 356 transitions. [2023-12-02 22:33:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 356 transitions. [2023-12-02 22:33:54,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 22:33:54,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:54,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:33:54,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:33:54,006 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:33:54,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 22:33:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:55,733 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:33:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:56,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:33:56,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:56,508 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 22:33:56,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 22:34:07,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 269 states and 357 transitions. [2023-12-02 22:34:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 357 transitions. [2023-12-02 22:34:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 22:34:07,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:07,750 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:07,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:07,751 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:07,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 22:34:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:09,465 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:09,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 22:34:09,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:10,217 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 22:34:10,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 22:34:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 270 states and 358 transitions. [2023-12-02 22:34:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 358 transitions. [2023-12-02 22:34:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 22:34:11,578 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:11,578 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:11,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:11,579 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:11,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 22:34:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:13,367 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:13,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:34:13,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:14,206 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 22:34:14,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 22:34:15,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 271 states and 359 transitions. [2023-12-02 22:34:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 359 transitions. [2023-12-02 22:34:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 22:34:15,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:15,608 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:15,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:15,609 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:15,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 22:34:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:17,425 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:17,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 22:34:17,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:18,240 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 22:34:18,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 22:34:25,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 272 states and 360 transitions. [2023-12-02 22:34:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 360 transitions. [2023-12-02 22:34:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 22:34:25,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:25,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:25,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:25,581 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:25,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 22:34:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:27,495 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:27,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:34:27,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:28,359 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 22:34:28,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 22:34:39,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:39,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:39,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 273 states and 361 transitions. [2023-12-02 22:34:39,924 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 361 transitions. [2023-12-02 22:34:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 22:34:39,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:39,925 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:39,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:39,926 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:39,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 22:34:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:41,971 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:42,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:34:42,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:42,917 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 22:34:42,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 22:34:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 274 states and 362 transitions. [2023-12-02 22:34:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 362 transitions. [2023-12-02 22:34:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 22:34:44,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:44,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:44,504 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:44,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 22:34:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:46,595 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:47,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 22:34:47,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:47,501 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 22:34:47,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 22:34:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 275 states and 363 transitions. [2023-12-02 22:34:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 363 transitions. [2023-12-02 22:34:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 22:34:49,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:49,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:49,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:49,128 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:49,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 22:34:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:51,250 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:51,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:34:51,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:52,194 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 22:34:52,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 22:35:00,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 276 states and 364 transitions. [2023-12-02 22:35:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 364 transitions. [2023-12-02 22:35:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 22:35:00,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:00,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:00,950 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:00,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 22:35:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:03,151 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:03,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 22:35:03,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:04,099 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 22:35:04,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 22:35:10,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 277 states and 365 transitions. [2023-12-02 22:35:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 365 transitions. [2023-12-02 22:35:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 22:35:10,108 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:10,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:10,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:10,109 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:10,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 22:35:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:12,179 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:12,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:35:12,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:13,183 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 22:35:13,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 22:35:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 278 states and 366 transitions. [2023-12-02 22:35:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 366 transitions. [2023-12-02 22:35:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 22:35:15,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:15,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:15,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:15,078 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:15,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 22:35:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:17,391 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:17,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 22:35:17,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:18,418 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 22:35:18,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 22:35:20,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 279 states and 367 transitions. [2023-12-02 22:35:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 367 transitions. [2023-12-02 22:35:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 22:35:20,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:20,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:20,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:20,408 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:20,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 22:35:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:22,839 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:23,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:35:23,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:23,898 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 22:35:23,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 22:35:32,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 280 states and 368 transitions. [2023-12-02 22:35:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 368 transitions. [2023-12-02 22:35:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 22:35:33,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:33,043 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:33,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:33,043 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:33,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 22:35:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:35,596 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:36,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 22:35:36,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:36,604 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 22:35:36,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 22:35:46,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 281 states and 369 transitions. [2023-12-02 22:35:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 369 transitions. [2023-12-02 22:35:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 22:35:46,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:46,553 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:46,554 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:46,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 22:35:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:48,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:49,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:35:49,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:49,887 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 22:35:49,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 22:35:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 282 states and 370 transitions. [2023-12-02 22:35:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 370 transitions. [2023-12-02 22:35:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 22:35:52,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:52,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:52,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:52,047 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:52,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 22:35:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:54,670 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:35:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:55,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:35:55,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:55,766 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 22:35:55,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 22:35:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:58,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 283 states and 371 transitions. [2023-12-02 22:35:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 371 transitions. [2023-12-02 22:35:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 22:35:58,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:58,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:35:58,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:35:58,185 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:35:58,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 22:36:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:00,923 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:01,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:36:01,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:01,999 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 22:36:02,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 22:36:11,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 284 states and 372 transitions. [2023-12-02 22:36:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 372 transitions. [2023-12-02 22:36:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 22:36:11,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:11,716 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:11,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:11,717 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:11,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 22:36:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:14,268 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:14,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:36:14,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:15,382 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 22:36:15,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 22:36:27,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 285 states and 373 transitions. [2023-12-02 22:36:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 373 transitions. [2023-12-02 22:36:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 22:36:27,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:27,930 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:27,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:27,931 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:27,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 22:36:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:30,934 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:31,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:36:31,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:32,220 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 22:36:32,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 22:36:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 286 states and 374 transitions. [2023-12-02 22:36:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 374 transitions. [2023-12-02 22:36:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 22:36:34,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:34,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:34,687 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:34,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 22:36:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:37,367 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:37,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:36:37,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:38,540 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 22:36:38,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 22:36:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 287 states and 375 transitions. [2023-12-02 22:36:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 375 transitions. [2023-12-02 22:36:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 22:36:41,123 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:41,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:41,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:41,124 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:41,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 22:36:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:44,147 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:44,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:36:44,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:45,392 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 22:36:45,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 22:36:57,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 288 states and 376 transitions. [2023-12-02 22:36:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 376 transitions. [2023-12-02 22:36:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 22:36:57,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:57,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:57,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:57,696 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:57,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 22:37:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:00,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:37:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:01,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:37:01,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:01,791 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 22:37:01,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 22:37:10,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 289 states and 377 transitions. [2023-12-02 22:37:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 377 transitions. [2023-12-02 22:37:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 22:37:10,793 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:10,793 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:37:10,794 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:37:10,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 22:37:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:13,961 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:37:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:14,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:37:14,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:15,229 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 22:37:15,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 22:37:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 290 states and 378 transitions. [2023-12-02 22:37:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 378 transitions. [2023-12-02 22:37:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 22:37:18,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:18,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:18,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:37:18,191 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:37:18,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 22:37:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:21,451 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:37:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:21,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:37:21,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:22,751 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 22:37:22,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 22:37:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 291 states and 379 transitions. [2023-12-02 22:37:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 379 transitions. [2023-12-02 22:37:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 22:37:25,821 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:25,821 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:37:25,822 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:37:25,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 22:37:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:29,133 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:37:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:29,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:37:29,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:30,442 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 22:37:30,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 22:37:43,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 292 states and 380 transitions. [2023-12-02 22:37:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 380 transitions. [2023-12-02 22:37:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 22:37:43,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:43,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:43,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:37:43,601 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:37:43,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 22:37:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:47,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:37:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:47,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:37:47,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:48,248 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 22:37:48,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 22:38:00,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 293 states and 381 transitions. [2023-12-02 22:38:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 381 transitions. [2023-12-02 22:38:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 22:38:00,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:00,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:00,268 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:00,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 22:38:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:03,651 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:04,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:38:04,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:05,049 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 22:38:05,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-12-02 22:38:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 294 states and 382 transitions. [2023-12-02 22:38:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 382 transitions. [2023-12-02 22:38:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 22:38:08,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:08,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:08,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:08,405 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:08,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 22:38:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:11,850 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:12,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 22:38:12,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:13,241 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 22:38:13,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2023-12-02 22:38:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 295 states and 383 transitions. [2023-12-02 22:38:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 383 transitions. [2023-12-02 22:38:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 22:38:16,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:16,804 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:16,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:16,805 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:16,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 22:38:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:20,172 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:20,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:38:20,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:21,603 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 22:38:21,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 22:38:31,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 296 states and 384 transitions. [2023-12-02 22:38:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 384 transitions. [2023-12-02 22:38:31,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 22:38:31,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:31,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:31,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:31,450 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:31,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 22:38:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:35,132 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:35,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 22:38:35,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:36,560 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 22:38:36,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 22:38:43,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 297 states and 385 transitions. [2023-12-02 22:38:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 385 transitions. [2023-12-02 22:38:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 22:38:43,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:43,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:43,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:43,215 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:43,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 22:38:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:47,151 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:47,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 22:38:47,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:48,615 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 22:38:48,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 22:38:52,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 298 states and 386 transitions. [2023-12-02 22:38:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 386 transitions. [2023-12-02 22:38:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 22:38:52,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:52,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:52,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:52,196 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:52,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 22:38:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:56,125 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:56,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:38:56,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:57,669 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 22:38:57,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 22:39:01,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 299 states and 387 transitions. [2023-12-02 22:39:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 387 transitions. [2023-12-02 22:39:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 22:39:01,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:01,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:01,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:01,519 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:01,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 22:39:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:05,419 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:05,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 22:39:05,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:06,869 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 22:39:06,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 22:39:20,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 300 states and 388 transitions. [2023-12-02 22:39:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 388 transitions. [2023-12-02 22:39:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 22:39:20,804 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:20,804 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:20,805 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:20,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 22:39:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:24,760 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:25,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:39:25,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:26,276 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 22:39:26,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2023-12-02 22:39:40,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:40,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 301 states and 389 transitions. [2023-12-02 22:39:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 389 transitions. [2023-12-02 22:39:40,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 22:39:40,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:40,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:40,222 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:40,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 22:39:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:44,435 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:45,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:39:45,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:46,063 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 22:39:46,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 22:39:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:50,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 302 states and 390 transitions. [2023-12-02 22:39:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 390 transitions. [2023-12-02 22:39:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 22:39:50,099 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:50,099 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:50,100 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:50,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 22:39:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:54,038 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:54,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 22:39:54,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:55,747 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 22:39:55,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 22:40:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 303 states and 391 transitions. [2023-12-02 22:40:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 391 transitions. [2023-12-02 22:40:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 22:40:00,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:00,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:00,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:00,050 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:00,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 22:40:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:04,313 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:04,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:40:04,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:05,928 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 22:40:05,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-02 22:40:17,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 304 states and 392 transitions. [2023-12-02 22:40:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2023-12-02 22:40:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 22:40:17,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:17,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:17,435 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:17,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-02 22:40:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:21,125 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:21,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 22:40:21,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:22,840 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 22:40:22,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-02 22:40:36,933 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 22:40:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 305 states and 393 transitions. [2023-12-02 22:40:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 393 transitions. [2023-12-02 22:40:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 22:40:36,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:36,985 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:36,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:36,986 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:36,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-02 22:40:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:41,168 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:41,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 22:40:41,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:42,889 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 22:40:42,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-02 22:40:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 306 states and 394 transitions. [2023-12-02 22:40:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 394 transitions. [2023-12-02 22:40:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 22:40:47,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:47,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:47,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:47,542 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:47,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-02 22:40:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:52,335 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:52,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:40:52,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:54,126 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 22:40:54,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2023-12-02 22:40:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 307 states and 395 transitions. [2023-12-02 22:40:58,856 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 395 transitions. [2023-12-02 22:40:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 22:40:58,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:58,856 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:58,857 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:58,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-02 22:41:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:03,612 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:04,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 22:41:04,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:05,258 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 22:41:05,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb7e649-f6a0-4317-82aa-a2a75ef2afd3/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0