./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/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_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/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_77cd8507-042b-4876-9f78-2ce5d2d498be/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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:14:18,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:14:18,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 23:14:18,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:14:18,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:14:18,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:14:18,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:14:18,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:14:18,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:14:18,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:14:18,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:14:18,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:14:18,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:14:18,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:14:18,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:14:18,948 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:14:18,948 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:14:18,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:14:18,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:14:18,950 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:14:18,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:14:18,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:14:18,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:14:18,952 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:14:18,952 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:14:18,952 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:14:18,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:14:18,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:14:18,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:14:18,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:14:18,954 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:14:18,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:14:18,955 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_77cd8507-042b-4876-9f78-2ce5d2d498be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-12-02 23:14:19,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:14:19,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:14:19,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:14:19,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:14:19,183 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:14:19,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-12-02 23:14:21,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:14:22,166 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:14:22,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-12-02 23:14:22,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/2ff025ef0/66e38c8fd84241ba959e104a460e27af/FLAGda35e4e9d [2023-12-02 23:14:22,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/2ff025ef0/66e38c8fd84241ba959e104a460e27af [2023-12-02 23:14:22,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:14:22,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:14:22,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:14:22,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:14:22,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:14:22,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:22,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8c30bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22, skipping insertion in model container [2023-12-02 23:14:22,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:22,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:14:22,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:14:22,756 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:14:22,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:14:22,871 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:14:22,879 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:14:22,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22 WrapperNode [2023-12-02 23:14:22,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:14:22,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:14:22,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:14:22,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:14:22,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:22,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:22,981 INFO L138 Inliner]: procedures = 208, calls = 237, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1255 [2023-12-02 23:14:22,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:14:22,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:14:22,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:14:22,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:14:22,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:22,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:14:23,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:14:23,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:14:23,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:14:23,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:22" (1/1) ... [2023-12-02 23:14:23,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:14:23,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:14:23,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:14:23,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:14:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:14:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:14:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:14:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:14:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:14:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:14:23,336 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:14:23,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:14:26,060 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:14:27,281 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:14:27,281 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 23:14:27,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:14:27 BoogieIcfgContainer [2023-12-02 23:14:27,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:14:27,284 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:14:27,284 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:14:27,294 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:14:27,294 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:14:27" (1/1) ... [2023-12-02 23:14:27,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:14:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 133 states and 219 transitions. [2023-12-02 23:14:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 219 transitions. [2023-12-02 23:14:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:14:27,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:27,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 133 states and 217 transitions. [2023-12-02 23:14:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 217 transitions. [2023-12-02 23:14:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:14:27,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:27,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 135 states and 220 transitions. [2023-12-02 23:14:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 220 transitions. [2023-12-02 23:14:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:14:27,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:27,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:14:27,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 135 states and 218 transitions. [2023-12-02 23:14:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 218 transitions. [2023-12-02 23:14:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:14:27,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:27,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:27,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:14:28,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 135 states and 214 transitions. [2023-12-02 23:14:28,011 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 214 transitions. [2023-12-02 23:14:28,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:14:28,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:28,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:28,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:14:28,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:28,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 135 states and 208 transitions. [2023-12-02 23:14:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 208 transitions. [2023-12-02 23:14:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:14:28,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:28,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:28,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:14:28,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:38,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:14:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 135 states and 202 transitions. [2023-12-02 23:14:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 202 transitions. [2023-12-02 23:14:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:14:38,504 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:38,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:14:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:38,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:14:38,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:14:49,018 WARN L539 Checker$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 23:14:59,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:15:09,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:15:20,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:15:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 148 states and 217 transitions. [2023-12-02 23:15:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 217 transitions. [2023-12-02 23:15:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:15:20,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:20,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:15:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:20,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:15:20,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:15:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions. [2023-12-02 23:15:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2023-12-02 23:15:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:15:20,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:15:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:20,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:15:20,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:15:20,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 148 states and 213 transitions. [2023-12-02 23:15:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 213 transitions. [2023-12-02 23:15:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:15:20,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:15:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:20,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:15:20,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:15:30,900 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 23:15:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 148 states and 211 transitions. [2023-12-02 23:15:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 211 transitions. [2023-12-02 23:15:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:15:30,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:15:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:31,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:15:31,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:15:41,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:15:51,356 WARN L539 Checker$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 23:16:01,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:16:11,453 WARN L539 Checker$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 23:16:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 151 states and 213 transitions. [2023-12-02 23:16:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 213 transitions. [2023-12-02 23:16:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:16:11,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:11,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:16:11,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:11,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 23:16:11,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-02 23:16:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:16:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 153 states and 216 transitions. [2023-12-02 23:16:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 216 transitions. [2023-12-02 23:16:11,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:16:11,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:12,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:16:12,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:16:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 152 states and 211 transitions. [2023-12-02 23:16:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 211 transitions. [2023-12-02 23:16:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:16:12,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:12,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:12,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:16:12,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:16:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 152 states and 207 transitions. [2023-12-02 23:16:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2023-12-02 23:16:12,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 23:16:12,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:12,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:12,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:16:12,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:16:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 152 states and 205 transitions. [2023-12-02 23:16:12,829 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 205 transitions. [2023-12-02 23:16:12,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:16:12,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:12,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:13,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:16:13,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:16:23,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:16:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:16:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 152 states and 203 transitions. [2023-12-02 23:16:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2023-12-02 23:16:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:16:23,149 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:16:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:16:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:16:23,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:16:23,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:16:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:16:33,619 WARN L539 Checker$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 23:16:43,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:16:53,715 WARN L539 Checker$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 23:17:03,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:17:14,409 WARN L539 Checker$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 23:17:24,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:17:34,467 WARN L539 Checker$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 23:17:44,501 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 23:17:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:17:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 196 states and 260 transitions. [2023-12-02 23:17:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2023-12-02 23:17:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:17:44,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:17:44,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:17:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:17:44,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:17:44,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:17:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:17:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:17:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 196 states and 256 transitions. [2023-12-02 23:17:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 256 transitions. [2023-12-02 23:17:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:17:44,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:17:44,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:17:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:17:45,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:17:45,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:17:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:17:55,169 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 23:17:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:17:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 196 states and 254 transitions. [2023-12-02 23:17:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 254 transitions. [2023-12-02 23:17:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:17:55,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:17:55,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:17:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:17:55,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:17:55,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:17:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:18:05,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:18:15,619 WARN L539 Checker$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 23:18:25,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:18:35,696 WARN L539 Checker$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 23:18:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:18:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 181 states and 235 transitions. [2023-12-02 23:18:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 235 transitions. [2023-12-02 23:18:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:18:35,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:18:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:18:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:18:36,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:18:36,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:18:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:18:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:18:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 181 states and 233 transitions. [2023-12-02 23:18:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 233 transitions. [2023-12-02 23:18:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:18:36,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:18:36,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:18:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:18:36,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:18:36,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:18:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:18:46,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:18:56,567 WARN L539 Checker$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 23:19:06,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:19:16,639 WARN L539 Checker$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 23:19:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 184 states and 235 transitions. [2023-12-02 23:19:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 235 transitions. [2023-12-02 23:19:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 23:19:16,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:16,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:19:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:16,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:16,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 184 states and 234 transitions. [2023-12-02 23:19:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 234 transitions. [2023-12-02 23:19:17,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:19:17,009 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:17,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:19:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:17,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:19:17,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 192 states and 244 transitions. [2023-12-02 23:19:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 244 transitions. [2023-12-02 23:19:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:19:17,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:19:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:19:28,212 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 23:19:28,215 INFO L158 Benchmark]: Toolchain (without parser) took 306010.66ms. Allocated memory was 142.6MB in the beginning and 224.4MB in the end (delta: 81.8MB). Free memory was 81.0MB in the beginning and 160.1MB in the end (delta: -79.1MB). Peak memory consumption was 121.4MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,216 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:19:28,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.01ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 84.3MB in the end (delta: -3.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.43ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 76.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,217 INFO L158 Benchmark]: Boogie Preprocessor took 101.98ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 67.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,218 INFO L158 Benchmark]: RCFGBuilder took 4198.09ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 67.6MB in the beginning and 54.9MB in the end (delta: 12.7MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,219 INFO L158 Benchmark]: CodeCheck took 300930.49ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 54.9MB in the beginning and 160.1MB in the end (delta: -105.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2023-12-02 23:19:28,222 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 94.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.01ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 84.3MB in the end (delta: -3.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.43ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 76.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.98ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 67.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4198.09ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 67.6MB in the beginning and 54.9MB in the end (delta: 12.7MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * CodeCheck took 300930.49ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 54.9MB in the beginning and 160.1MB in the end (delta: -105.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:19:28,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/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_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/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_77cd8507-042b-4876-9f78-2ce5d2d498be/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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:19:30,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:19:30,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 23:19:30,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:19:30,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:19:30,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:19:30,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:19:30,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:19:30,169 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:19:30,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:19:30,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:19:30,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:19:30,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:19:30,172 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:19:30,172 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:19:30,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:19:30,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:19:30,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:19:30,175 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:19:30,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:19:30,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:19:30,176 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:19:30,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:19:30,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:19:30,178 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:19:30,178 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:19:30,179 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:19:30,179 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:30,179 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:19:30,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:19:30,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:19:30,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:19:30,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:19:30,181 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:19:30,182 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:30,182 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:19:30,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:19:30,182 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_77cd8507-042b-4876-9f78-2ce5d2d498be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-12-02 23:19:30,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:19:30,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:19:30,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:19:30,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:19:30,523 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:19:30,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-12-02 23:19:33,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:19:33,536 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:19:33,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-12-02 23:19:33,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/a73a65917/4eff6e6884024f0b880ca9f9b63a1480/FLAG9f9eec385 [2023-12-02 23:19:33,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/data/a73a65917/4eff6e6884024f0b880ca9f9b63a1480 [2023-12-02 23:19:33,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:19:33,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:19:33,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:19:33,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:19:33,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:19:33,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:33" (1/1) ... [2023-12-02 23:19:33,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190fd4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:33, skipping insertion in model container [2023-12-02 23:19:33,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:33" (1/1) ... [2023-12-02 23:19:33,659 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:19:34,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:19:34,190 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 23:19:34,204 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:19:34,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:19:34,320 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:19:34,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:19:34,429 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:19:34,437 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:19:34,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34 WrapperNode [2023-12-02 23:19:34,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:19:34,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:19:34,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:19:34,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:19:34,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,532 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 935 [2023-12-02 23:19:34,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:19:34,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:19:34,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:19:34,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:19:34,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:19:34,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:19:34,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:19:34,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:19:34,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:34" (1/1) ... [2023-12-02 23:19:34,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:19:34,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:19:34,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:19:34,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:19:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 23:19:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 23:19:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:19:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:19:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:19:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:19:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:19:34,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:19:34,899 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:19:34,901 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:19:48,451 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:19:48,853 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:19:48,853 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 23:19:48,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:48 BoogieIcfgContainer [2023-12-02 23:19:48,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:19:48,856 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:19:48,856 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:19:48,865 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:19:48,865 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:48" (1/1) ... [2023-12-02 23:19:48,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:19:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 133 states and 219 transitions. [2023-12-02 23:19:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 219 transitions. [2023-12-02 23:19:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:19:48,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:48,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:48,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:19:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:49,199 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:49,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:49,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:49,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:19:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 133 states and 217 transitions. [2023-12-02 23:19:49,318 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 217 transitions. [2023-12-02 23:19:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:19:49,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:49,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:49,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:49,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:49,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:19:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:49,614 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:49,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:19:49,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:49,717 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:19:49,718 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:19:49,718 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:19:49,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-02 23:19:49,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:19:49,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 23:19:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:49,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:19:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 135 states and 220 transitions. [2023-12-02 23:19:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 220 transitions. [2023-12-02 23:19:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:19:50,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:50,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:50,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:50,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:50,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:19:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:50,456 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:50,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:50,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:50,580 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:50,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:19:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 135 states and 218 transitions. [2023-12-02 23:19:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 218 transitions. [2023-12-02 23:19:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:19:50,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:50,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:50,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:50,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:50,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:19:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:50,869 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:50,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:50,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:50,975 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:50,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:19:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 135 states and 214 transitions. [2023-12-02 23:19:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 214 transitions. [2023-12-02 23:19:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:19:50,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:50,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:50,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:50,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:50,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:19:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:51,313 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:51,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:51,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:51,445 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:51,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:19:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 135 states and 208 transitions. [2023-12-02 23:19:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 208 transitions. [2023-12-02 23:19:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:19:51,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:51,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:51,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:51,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:51,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:19:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:51,820 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:51,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:51,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:51,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:51,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 23:19:51,986 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:52,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 135 states and 200 transitions. [2023-12-02 23:19:52,583 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 200 transitions. [2023-12-02 23:19:52,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:19:52,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:52,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:52,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:52,585 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:52,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 23:19:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:52,983 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:53,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:19:53,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:53,365 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:53,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 23:19:54,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions. [2023-12-02 23:19:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2023-12-02 23:19:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:19:54,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:54,546 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 23:19:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:54,894 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:55,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:55,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:55,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 23:19:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 148 states and 213 transitions. [2023-12-02 23:19:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 213 transitions. [2023-12-02 23:19:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:19:55,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:55,143 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:55,144 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:55,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 23:19:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:55,555 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:55,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:19:55,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:55,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 23:19:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 148 states and 211 transitions. [2023-12-02 23:19:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 211 transitions. [2023-12-02 23:19:55,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:19:55,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:55,816 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:55,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:55,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:55,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 23:19:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:56,277 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:56,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:19:56,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:19:56,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 23:19:56,669 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:19:56,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:19:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 151 states and 213 transitions. [2023-12-02 23:19:56,688 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 213 transitions. [2023-12-02 23:19:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:19:56,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:19:56,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:19:56,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:19:56,690 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:19:56,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 23:19:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:57,200 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:19:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:19:57,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:19:57,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:19:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:19:57,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 23:20:07,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 152 states and 214 transitions. [2023-12-02 23:20:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 214 transitions. [2023-12-02 23:20:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 23:20:07,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:07,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:07,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:07,693 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:07,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 23:20:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:08,282 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:08,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:20:08,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:20:08,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 23:20:18,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:18,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 153 states and 215 transitions. [2023-12-02 23:20:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 215 transitions. [2023-12-02 23:20:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:20:18,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:18,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:18,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:18,796 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:18,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 23:20:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:19,617 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:19,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:20:19,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:19,934 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:20:19,935 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:20:19,935 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:20:19,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-02 23:20:19,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:20:19,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 23:20:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:20:20,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-02 23:20:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 155 states and 218 transitions. [2023-12-02 23:20:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 218 transitions. [2023-12-02 23:20:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:20:20,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:20,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:20,179 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:20,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 23:20:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:20,818 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:21,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:20:21,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:20:21,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 23:20:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 154 states and 213 transitions. [2023-12-02 23:20:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 213 transitions. [2023-12-02 23:20:21,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:20:21,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:21,136 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:21,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:21,137 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:21,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 23:20:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:21,849 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:22,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:20:22,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:20:22,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 23:20:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 154 states and 209 transitions. [2023-12-02 23:20:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 209 transitions. [2023-12-02 23:20:22,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 23:20:22,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:22,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:22,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:22,160 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:22,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 23:20:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:22,868 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:23,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:20:23,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:20:23,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 23:20:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 154 states and 207 transitions. [2023-12-02 23:20:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 207 transitions. [2023-12-02 23:20:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:20:23,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:23,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:23,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:23,191 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:23,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 23:20:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:24,054 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:24,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:20:24,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:20:24,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 23:20:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:20:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 154 states and 205 transitions. [2023-12-02 23:20:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 205 transitions. [2023-12-02 23:20:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:20:24,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:20:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:20:24,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:20:24,425 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:20:24,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 23:20:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:25,279 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:20:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:20:25,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:20:25,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:20:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:20:25,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 23:20:32,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:41,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:20:51,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:01,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:05,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:07,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 200 states and 264 transitions. [2023-12-02 23:21:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 264 transitions. [2023-12-02 23:21:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:21:10,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:10,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:10,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:10,466 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:10,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 23:21:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:11,356 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:11,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:21:11,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:21:11,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 23:21:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 200 states and 262 transitions. [2023-12-02 23:21:11,773 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 262 transitions. [2023-12-02 23:21:11,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:21:11,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:11,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:11,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:11,775 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:11,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 23:21:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:12,756 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:13,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:21:13,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:21:13,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 23:21:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 200 states and 258 transitions. [2023-12-02 23:21:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 258 transitions. [2023-12-02 23:21:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:21:13,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:13,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:13,216 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:13,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 23:21:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:14,287 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:14,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:21:14,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:21:14,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 23:21:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 203 states and 260 transitions. [2023-12-02 23:21:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 260 transitions. [2023-12-02 23:21:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:21:14,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:14,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:14,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:14,973 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:14,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 23:21:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:16,186 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:16,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:21:16,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:21:16,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-02 23:21:26,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 203 states and 258 transitions. [2023-12-02 23:21:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 258 transitions. [2023-12-02 23:21:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:21:26,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:26,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:26,666 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:26,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 23:21:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:27,934 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:28,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:21:28,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:21:28,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 23:21:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 186 states and 237 transitions. [2023-12-02 23:21:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 237 transitions. [2023-12-02 23:21:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 23:21:28,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:28,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:28,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:28,669 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:28,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 23:21:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:29,920 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:30,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:21:30,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:21:30,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-02 23:21:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 186 states and 236 transitions. [2023-12-02 23:21:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 236 transitions. [2023-12-02 23:21:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 23:21:30,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:30,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:30,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:30,570 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:30,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 23:21:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:32,093 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:32,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:21:32,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:21:32,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-02 23:21:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 187 states and 234 transitions. [2023-12-02 23:21:33,618 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 234 transitions. [2023-12-02 23:21:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:21:33,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:33,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:33,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:33,620 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:33,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 23:21:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:35,175 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:35,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:21:35,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:21:35,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 23:21:46,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:21:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:21:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 188 states and 235 transitions. [2023-12-02 23:21:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 235 transitions. [2023-12-02 23:21:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 23:21:46,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:21:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:21:46,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:21:46,691 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:21:46,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 23:21:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:48,522 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:21:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:21:48,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:21:48,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:21:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:21:49,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 23:22:00,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 189 states and 236 transitions. [2023-12-02 23:22:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 236 transitions. [2023-12-02 23:22:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:22:00,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:00,176 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:00,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:00,177 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:00,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 23:22:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:01,913 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:02,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:22:02,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:22:02,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 23:22:13,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:13,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 190 states and 237 transitions. [2023-12-02 23:22:13,612 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2023-12-02 23:22:13,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 23:22:13,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:13,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:13,615 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:13,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 23:22:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:15,370 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:15,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:22:15,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:16,052 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:22:16,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 23:22:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 191 states and 238 transitions. [2023-12-02 23:22:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 238 transitions. [2023-12-02 23:22:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 23:22:17,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:17,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:17,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:17,101 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:17,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 23:22:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:18,839 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:19,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:22:19,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:22:19,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 23:22:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:20,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 192 states and 239 transitions. [2023-12-02 23:22:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 239 transitions. [2023-12-02 23:22:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 23:22:20,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:20,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:20,602 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:20,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 23:22:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:22,487 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:22,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:22:22,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:22:23,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 23:22:34,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 193 states and 240 transitions. [2023-12-02 23:22:34,443 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2023-12-02 23:22:34,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:22:34,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:34,452 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:34,454 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:34,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 23:22:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:36,677 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:37,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:22:37,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:22:37,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 23:22:48,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:22:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 194 states and 241 transitions. [2023-12-02 23:22:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 241 transitions. [2023-12-02 23:22:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 23:22:48,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:48,673 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:48,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 23:22:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:50,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:51,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:22:51,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:22:51,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 23:22:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 195 states and 242 transitions. [2023-12-02 23:22:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2023-12-02 23:22:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 23:22:52,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:52,780 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:52,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:52,781 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:52,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 23:22:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:54,534 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:54,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:22:54,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:22:55,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 23:22:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:22:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 196 states and 243 transitions. [2023-12-02 23:22:56,513 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 243 transitions. [2023-12-02 23:22:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:22:56,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:22:56,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:22:56,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:22:56,515 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:22:56,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 23:22:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:58,497 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:22:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:22:58,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:22:58,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:22:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:22:59,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 23:23:10,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:23:10,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:10,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 197 states and 244 transitions. [2023-12-02 23:23:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 244 transitions. [2023-12-02 23:23:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 23:23:10,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:10,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:10,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:10,733 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:10,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 23:23:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:12,697 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:23:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:13,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:23:13,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:23:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:23:13,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 23:23:24,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:23:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 198 states and 245 transitions. [2023-12-02 23:23:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 245 transitions. [2023-12-02 23:23:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 23:23:25,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:25,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:25,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:25,019 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:25,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 23:23:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:27,154 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:23:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:27,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:23:27,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:23:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:23:27,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 23:23:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 199 states and 246 transitions. [2023-12-02 23:23:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 246 transitions. [2023-12-02 23:23:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:23:29,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:29,288 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:29,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:29,289 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:29,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 23:23:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:31,354 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:23:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:31,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:23:31,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:23:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:23:32,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 23:23:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 200 states and 247 transitions. [2023-12-02 23:23:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 247 transitions. [2023-12-02 23:23:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 23:23:33,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:33,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:33,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:33,470 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:33,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 23:23:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:35,603 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:23:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:35,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:23:35,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:23:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:23:36,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 23:23:47,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:23:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:23:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 201 states and 248 transitions. [2023-12-02 23:23:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 248 transitions. [2023-12-02 23:23:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 23:23:47,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:23:47,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:23:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:23:47,869 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:23:47,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 23:23:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:50,122 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:23:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:23:50,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:23:50,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:23:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:23:51,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 23:24:02,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:24:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 202 states and 249 transitions. [2023-12-02 23:24:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 249 transitions. [2023-12-02 23:24:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 23:24:02,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:02,844 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:02,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:02,845 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:02,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 23:24:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:05,067 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:05,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:24:05,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:24:05,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 23:24:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 203 states and 250 transitions. [2023-12-02 23:24:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 250 transitions. [2023-12-02 23:24:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 23:24:07,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:07,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:07,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:07,627 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:07,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 23:24:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:09,955 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:10,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:24:10,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:24:10,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 23:24:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 204 states and 251 transitions. [2023-12-02 23:24:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 251 transitions. [2023-12-02 23:24:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 23:24:12,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:12,560 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:12,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:12,561 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:12,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 23:24:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:14,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:15,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:24:15,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:24:15,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 23:24:27,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:24:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 205 states and 252 transitions. [2023-12-02 23:24:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2023-12-02 23:24:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 23:24:27,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:27,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:27,408 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:27,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 23:24:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:30,055 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:30,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:24:30,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:24:31,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 23:24:43,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:24:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 206 states and 253 transitions. [2023-12-02 23:24:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 253 transitions. [2023-12-02 23:24:43,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 23:24:43,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:43,094 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:43,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:43,095 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:43,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 23:24:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:45,715 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:46,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:24:46,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:24:46,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 23:24:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 207 states and 254 transitions. [2023-12-02 23:24:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 254 transitions. [2023-12-02 23:24:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 23:24:48,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:48,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:48,557 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:48,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 23:24:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:51,124 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:51,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:24:51,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:24:52,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 23:24:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:24:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 208 states and 255 transitions. [2023-12-02 23:24:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 255 transitions. [2023-12-02 23:24:54,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 23:24:54,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:24:54,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:24:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:24:54,183 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:24:54,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 23:24:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:57,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:24:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:24:57,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:24:57,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:24:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:24:57,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 23:25:09,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:25:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 209 states and 256 transitions. [2023-12-02 23:25:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 256 transitions. [2023-12-02 23:25:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 23:25:10,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:10,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:10,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:10,068 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:10,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 23:25:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:12,853 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:25:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:13,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:25:13,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:25:13,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 23:25:26,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:25:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 210 states and 257 transitions. [2023-12-02 23:25:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 257 transitions. [2023-12-02 23:25:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 23:25:26,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:26,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:26,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:26,345 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:26,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 23:25:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:29,581 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:25:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:30,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:25:30,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:25:30,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 23:25:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 211 states and 258 transitions. [2023-12-02 23:25:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 258 transitions. [2023-12-02 23:25:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 23:25:32,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:32,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:32,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:32,983 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:32,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 23:25:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:36,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:25:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:37,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:25:37,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:25:37,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 23:25:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 212 states and 259 transitions. [2023-12-02 23:25:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2023-12-02 23:25:40,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 23:25:40,254 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:40,254 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:40,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:40,255 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:40,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 23:25:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:43,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:25:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:25:44,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:25:44,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:25:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:25:44,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 23:25:57,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:25:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:25:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 213 states and 260 transitions. [2023-12-02 23:25:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 260 transitions. [2023-12-02 23:25:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 23:25:57,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:25:57,103 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:25:57,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:25:57,104 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:25:57,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 23:26:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:00,215 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:00,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:26:00,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:26:01,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 23:26:13,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:26:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:13,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 214 states and 261 transitions. [2023-12-02 23:26:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 261 transitions. [2023-12-02 23:26:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 23:26:13,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:26:13,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:26:13,763 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:26:13,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 23:26:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:17,083 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:17,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:26:17,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:26:18,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 23:26:20,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 215 states and 262 transitions. [2023-12-02 23:26:20,881 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 262 transitions. [2023-12-02 23:26:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 23:26:20,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:20,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:26:20,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:26:20,882 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:26:20,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 23:26:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:24,185 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:24,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:26:24,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:26:25,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 23:26:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 216 states and 263 transitions. [2023-12-02 23:26:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 263 transitions. [2023-12-02 23:26:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 23:26:28,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:28,175 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:26:28,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:26:28,176 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:26:28,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 23:26:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:31,701 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:32,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:26:32,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:26:32,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 23:26:45,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:26:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:26:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 217 states and 264 transitions. [2023-12-02 23:26:45,808 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 264 transitions. [2023-12-02 23:26:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 23:26:45,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:26:45,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:26:45,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:26:45,809 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:26:45,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 23:26:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:49,159 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:26:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:26:49,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:26:49,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:26:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:26:50,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 23:27:02,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:27:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 218 states and 265 transitions. [2023-12-02 23:27:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 265 transitions. [2023-12-02 23:27:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 23:27:02,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:02,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:02,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:27:02,424 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:27:02,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 23:27:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:05,929 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:27:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:06,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:27:06,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:27:07,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 23:27:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 219 states and 266 transitions. [2023-12-02 23:27:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 266 transitions. [2023-12-02 23:27:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 23:27:10,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:10,011 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:27:10,012 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:27:10,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 23:27:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:13,547 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:27:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:14,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:27:14,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:14,740 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:27:14,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 23:27:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 220 states and 267 transitions. [2023-12-02 23:27:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 267 transitions. [2023-12-02 23:27:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 23:27:17,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:17,698 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:17,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:27:17,699 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:27:17,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 23:27:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:21,324 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:27:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:21,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:27:21,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:27:22,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 23:27:35,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:27:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 221 states and 268 transitions. [2023-12-02 23:27:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 268 transitions. [2023-12-02 23:27:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 23:27:35,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:35,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:35,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:27:35,714 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:27:35,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 23:27:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:39,434 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:27:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:39,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:27:39,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:27:40,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 23:27:53,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:27:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:27:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 222 states and 269 transitions. [2023-12-02 23:27:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 269 transitions. [2023-12-02 23:27:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 23:27:53,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:27:53,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:27:53,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:27:53,780 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:27:53,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 23:27:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:57,413 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:27:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:27:57,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:27:57,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:27:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:27:58,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2023-12-02 23:28:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 223 states and 270 transitions. [2023-12-02 23:28:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 270 transitions. [2023-12-02 23:28:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 23:28:01,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:01,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:28:01,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:28:01,813 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:28:01,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 23:28:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:05,638 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:28:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:06,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:28:06,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:28:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:28:06,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 23:28:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 224 states and 271 transitions. [2023-12-02 23:28:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 271 transitions. [2023-12-02 23:28:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 23:28:10,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:28:10,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:28:10,171 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:28:10,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 23:28:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:13,963 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:28:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:14,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:28:14,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:28:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:28:15,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 23:28:28,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:28:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:28,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 225 states and 272 transitions. [2023-12-02 23:28:28,711 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 272 transitions. [2023-12-02 23:28:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 23:28:28,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:28,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:28:28,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:28:28,712 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:28:28,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 23:28:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:32,676 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:28:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:28:33,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 23:28:33,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:28:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:28:33,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77cd8507-042b-4876-9f78-2ce5d2d498be/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0