./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.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_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/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_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/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_b6488eb2-db63-4051-9bbb-b5176302ee82/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 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:53:07,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:53:07,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 20:53:07,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:53:07,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 20:53:07,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:53:07,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:53:07,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:53:07,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:53:07,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:53:07,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:53:07,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:53:07,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:53:07,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:53:07,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:53:07,753 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 20:53:07,754 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 20:53:07,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:53:07,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:53:07,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:53:07,756 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:53:07,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:53:07,757 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:53:07,757 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:53:07,758 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:53:07,758 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:53:07,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:53:07,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:53:07,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:53:07,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:53:07,760 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 20:53:07,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:53:07,761 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_b6488eb2-db63-4051-9bbb-b5176302ee82/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a [2023-12-02 20:53:07,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:53:08,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:53:08,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:53:08,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:53:08,007 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:53:08,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-12-02 20:53:10,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:53:10,915 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:53:10,916 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-12-02 20:53:10,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/12ee11821/baa6b7c3fb8c47ea931162179b08d579/FLAG5e820a401 [2023-12-02 20:53:10,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/12ee11821/baa6b7c3fb8c47ea931162179b08d579 [2023-12-02 20:53:10,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:53:10,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:53:10,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:53:10,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:53:10,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:53:10,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:10" (1/1) ... [2023-12-02 20:53:10,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24cc19ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:10, skipping insertion in model container [2023-12-02 20:53:10,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:10" (1/1) ... [2023-12-02 20:53:11,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:53:11,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:53:11,493 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:53:11,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:53:11,614 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:53:11,622 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:53:11,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11 WrapperNode [2023-12-02 20:53:11,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:53:11,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:53:11,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:53:11,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:53:11,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,750 INFO L138 Inliner]: procedures = 177, calls = 299, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1659 [2023-12-02 20:53:11,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:53:11,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:53:11,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:53:11,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:53:11,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:53:11,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:53:11,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:53:11,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:53:11,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:11" (1/1) ... [2023-12-02 20:53:11,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:53:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 20:53:11,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 20:53:11,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 20:53:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:53:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:53:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 20:53:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:53:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:53:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:53:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:53:12,111 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:53:12,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:53:13,561 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:53:15,021 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:53:15,022 INFO L309 CfgBuilder]: Removed 62 assume(true) statements. [2023-12-02 20:53:15,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:15 BoogieIcfgContainer [2023-12-02 20:53:15,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:53:15,024 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 20:53:15,024 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 20:53:15,034 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 20:53:15,034 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:15" (1/1) ... [2023-12-02 20:53:15,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:53:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 323 states and 494 transitions. [2023-12-02 20:53:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2023-12-02 20:53:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 20:53:15,110 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,266 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 20:53:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 323 states and 492 transitions. [2023-12-02 20:53:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 492 transitions. [2023-12-02 20:53:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 20:53:15,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,422 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 20:53:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 325 states and 495 transitions. [2023-12-02 20:53:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 495 transitions. [2023-12-02 20:53:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 20:53:15,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:53:15,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:53:15,560 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 20:53:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 324 states and 490 transitions. [2023-12-02 20:53:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 490 transitions. [2023-12-02 20:53:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 20:53:15,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:53:15,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:53:15,685 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 20:53:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 324 states and 486 transitions. [2023-12-02 20:53:15,692 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2023-12-02 20:53:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 20:53:15,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:53:15,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:53:15,794 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 20:53:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 324 states and 480 transitions. [2023-12-02 20:53:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2023-12-02 20:53:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 20:53:15,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:15,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:53:15,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:53:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:53:26,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:53:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:53:26,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 324 states and 474 transitions. [2023-12-02 20:53:26,093 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 474 transitions. [2023-12-02 20:53:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 20:53:26,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:53:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:53:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:53:26,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:53:26,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:53:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:53:36,653 WARN L539 Checker$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 20:53:46,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:53:56,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:54:06,779 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 20:54:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 337 states and 489 transitions. [2023-12-02 20:54:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 489 transitions. [2023-12-02 20:54:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 20:54:06,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:07,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:54:07,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:07,019 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 20:54:07,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:07,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 337 states and 487 transitions. [2023-12-02 20:54:07,027 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 487 transitions. [2023-12-02 20:54:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 20:54:07,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:07,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:54:07,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:07,253 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 20:54:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 337 states and 485 transitions. [2023-12-02 20:54:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 485 transitions. [2023-12-02 20:54:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 20:54:07,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:07,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:07,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:54:07,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:54:17,488 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 20:54:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 337 states and 483 transitions. [2023-12-02 20:54:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 483 transitions. [2023-12-02 20:54:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 20:54:17,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:17,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:17,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:54:17,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:54:27,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:54:37,922 WARN L539 Checker$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 20:54:47,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:54:57,971 WARN L539 Checker$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 20:54:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 340 states and 485 transitions. [2023-12-02 20:54:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 485 transitions. [2023-12-02 20:54:58,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 20:54:58,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:55:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 20:55:08,270 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 20:55:08,273 INFO L158 Benchmark]: Toolchain (without parser) took 117320.57ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 87.2MB in the beginning and 104.6MB in the end (delta: -17.4MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,274 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:55:08,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 668.89ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 53.8MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.30ms. Allocated memory is still 125.8MB. Free memory was 53.8MB in the beginning and 90.5MB in the end (delta: -36.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,276 INFO L158 Benchmark]: Boogie Preprocessor took 115.46ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 80.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,276 INFO L158 Benchmark]: RCFGBuilder took 3156.10ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 80.0MB in the beginning and 84.8MB in the end (delta: -4.8MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,277 INFO L158 Benchmark]: CodeCheck took 113248.23ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 84.8MB in the beginning and 104.6MB in the end (delta: -19.8MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-12-02 20:55:08,280 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 0.16ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 668.89ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 53.8MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.30ms. Allocated memory is still 125.8MB. Free memory was 53.8MB in the beginning and 90.5MB in the end (delta: -36.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.46ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 80.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3156.10ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 80.0MB in the beginning and 84.8MB in the end (delta: -4.8MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. * CodeCheck took 113248.23ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 84.8MB in the beginning and 104.6MB in the end (delta: -19.8MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 20:55:08,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/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_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/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_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/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_b6488eb2-db63-4051-9bbb-b5176302ee82/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 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:55:10,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:55:10,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 20:55:10,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:55:10,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:55:10,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:55:10,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:55:10,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:55:10,197 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:55:10,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:55:10,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:55:10,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:55:10,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:55:10,200 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 20:55:10,200 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 20:55:10,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:55:10,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:55:10,202 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:55:10,202 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 20:55:10,203 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 20:55:10,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:55:10,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:55:10,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:55:10,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:55:10,206 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:55:10,206 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:55:10,206 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:55:10,207 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:10,207 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 20:55:10,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:55:10,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:55:10,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:55:10,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:55:10,209 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 20:55:10,210 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:10,210 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 20:55:10,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:55:10,210 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_b6488eb2-db63-4051-9bbb-b5176302ee82/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a [2023-12-02 20:55:10,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:55:10,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:55:10,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:55:10,529 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:55:10,530 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:55:10,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-12-02 20:55:13,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:55:13,566 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:55:13,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-12-02 20:55:13,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/c5ffd10de/ee1018e7f4744ba8b8cb2b89218591e7/FLAG11a25a568 [2023-12-02 20:55:13,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/data/c5ffd10de/ee1018e7f4744ba8b8cb2b89218591e7 [2023-12-02 20:55:13,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:55:13,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:55:13,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:13,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:55:13,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:55:13,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:13" (1/1) ... [2023-12-02 20:55:13,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f1272f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:13, skipping insertion in model container [2023-12-02 20:55:13,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:13" (1/1) ... [2023-12-02 20:55:13,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:55:14,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:14,087 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 20:55:14,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:55:14,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:14,215 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:55:14,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:14,330 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:55:14,336 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:55:14,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14 WrapperNode [2023-12-02 20:55:14,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:14,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:14,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:55:14,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:55:14,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,433 INFO L138 Inliner]: procedures = 180, calls = 299, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1332 [2023-12-02 20:55:14,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:14,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:55:14,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:55:14,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:55:14,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:55:14,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:55:14,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:55:14,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:55:14,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:14" (1/1) ... [2023-12-02 20:55:14,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:55:14,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 20:55:14,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 20:55:14,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 20:55:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:55:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 20:55:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 20:55:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:55:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 20:55:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 20:55:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:55:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:55:14,821 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:55:14,823 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:55:30,996 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:55:31,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:55:31,454 INFO L309 CfgBuilder]: Removed 62 assume(true) statements. [2023-12-02 20:55:31,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:31 BoogieIcfgContainer [2023-12-02 20:55:31,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:55:31,457 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 20:55:31,457 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 20:55:31,467 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 20:55:31,467 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:31" (1/1) ... [2023-12-02 20:55:31,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:55:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 323 states and 494 transitions. [2023-12-02 20:55:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2023-12-02 20:55:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 20:55:31,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:31,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:31,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:31,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:31,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 20:55:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:31,846 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:31,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:31,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:31,929 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 20:55:31,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 20:55:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 323 states and 492 transitions. [2023-12-02 20:55:31,982 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 492 transitions. [2023-12-02 20:55:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 20:55:31,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:31,984 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:31,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:31,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 20:55:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:32,298 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:32,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:55:32,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:32,421 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:55:32,421 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:55:32,422 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:55:32,432 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 20:55:32,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:55:32,527 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 20:55:32,551 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 20:55:32,554 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 20:55:32,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 20:55:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 325 states and 495 transitions. [2023-12-02 20:55:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 495 transitions. [2023-12-02 20:55:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 20:55:32,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:32,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:32,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:32,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 20:55:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:33,135 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:33,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:33,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:33,248 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 20:55:33,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 20:55:33,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 324 states and 490 transitions. [2023-12-02 20:55:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 490 transitions. [2023-12-02 20:55:33,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 20:55:33,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:33,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:33,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:33,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:33,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 20:55:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:33,554 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:33,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:33,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:33,662 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 20:55:33,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 20:55:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 324 states and 486 transitions. [2023-12-02 20:55:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2023-12-02 20:55:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 20:55:33,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:33,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:33,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 20:55:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:33,963 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:34,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:34,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:34,120 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 20:55:34,124 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 20:55:34,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 20:55:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 324 states and 480 transitions. [2023-12-02 20:55:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2023-12-02 20:55:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 20:55:34,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:34,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:34,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:34,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:34,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 20:55:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:34,468 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:34,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:34,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:34,623 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 20:55:34,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 20:55:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 324 states and 472 transitions. [2023-12-02 20:55:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 472 transitions. [2023-12-02 20:55:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 20:55:35,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:35,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:35,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:35,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:35,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 20:55:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:35,778 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:36,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:55:36,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:55:36,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 20:55:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 337 states and 487 transitions. [2023-12-02 20:55:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 487 transitions. [2023-12-02 20:55:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 20:55:37,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:37,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:37,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:37,951 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:37,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 20:55:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:38,340 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:38,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:38,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:38,553 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 20:55:38,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 20:55:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 337 states and 485 transitions. [2023-12-02 20:55:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 485 transitions. [2023-12-02 20:55:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 20:55:38,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:38,570 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:38,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:38,571 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:38,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 20:55:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:39,013 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:39,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:55:39,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:55:39,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 20:55:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 337 states and 483 transitions. [2023-12-02 20:55:39,302 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 483 transitions. [2023-12-02 20:55:39,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 20:55:39,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:39,303 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:39,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:39,305 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:39,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 20:55:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:39,757 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:40,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:55:40,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:55:40,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 20:55:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 340 states and 485 transitions. [2023-12-02 20:55:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 485 transitions. [2023-12-02 20:55:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 20:55:40,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:40,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:40,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:40,185 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:40,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 20:55:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:40,680 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:40,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:55:40,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:41,059 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 20:55:41,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 20:55:51,083 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 20:55:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 341 states and 486 transitions. [2023-12-02 20:55:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 486 transitions. [2023-12-02 20:55:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 20:55:51,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:51,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:51,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:51,179 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:51,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 20:55:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:51,748 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:52,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:55:52,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:55:52,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-12-02 20:56:02,216 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 20:56:02,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:02,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 342 states and 487 transitions. [2023-12-02 20:56:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 487 transitions. [2023-12-02 20:56:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 20:56:02,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:02,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:02,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:02,256 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:02,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 20:56:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:03,014 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:03,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:56:03,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:56:03,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 20:56:03,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:03,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 343 states and 488 transitions. [2023-12-02 20:56:03,655 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 488 transitions. [2023-12-02 20:56:03,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 20:56:03,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:03,656 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:03,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:03,657 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:03,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 20:56:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:04,484 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:04,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:56:04,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 20:56:04,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 20:56:15,165 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 20:56:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 344 states and 489 transitions. [2023-12-02 20:56:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 489 transitions. [2023-12-02 20:56:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 20:56:15,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:15,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:15,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:15,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 20:56:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:15,994 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:16,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 20:56:16,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 20:56:16,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 20:56:26,669 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 20:56:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 345 states and 490 transitions. [2023-12-02 20:56:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 490 transitions. [2023-12-02 20:56:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 20:56:26,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:26,709 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:26,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:26,710 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:26,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 20:56:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:27,647 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:27,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:56:27,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 20:56:28,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-12-02 20:56:38,408 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 20:56:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 346 states and 491 transitions. [2023-12-02 20:56:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 491 transitions. [2023-12-02 20:56:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 20:56:38,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:38,452 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:38,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 20:56:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:39,364 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:39,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 20:56:39,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:56:39,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 20:56:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 347 states and 492 transitions. [2023-12-02 20:56:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 492 transitions. [2023-12-02 20:56:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 20:56:40,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:40,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:40,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:40,128 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:40,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 20:56:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:41,062 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:41,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:56:41,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:56:41,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 20:56:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 348 states and 493 transitions. [2023-12-02 20:56:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 493 transitions. [2023-12-02 20:56:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 20:56:41,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:41,858 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:41,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 20:56:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:42,828 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:43,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 20:56:43,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:56:43,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 20:56:53,682 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 20:56:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 349 states and 494 transitions. [2023-12-02 20:56:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 494 transitions. [2023-12-02 20:56:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 20:56:53,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:56:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:56:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:56:53,726 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:56:53,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 20:56:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:54,860 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:56:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:56:55,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 20:56:55,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:56:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:56:55,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 20:57:05,778 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 20:57:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 350 states and 495 transitions. [2023-12-02 20:57:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 495 transitions. [2023-12-02 20:57:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 20:57:05,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:05,820 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:05,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:05,821 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:05,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 20:57:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:06,952 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:07,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 20:57:07,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 20:57:07,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 20:57:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 351 states and 496 transitions. [2023-12-02 20:57:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 496 transitions. [2023-12-02 20:57:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 20:57:07,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:07,905 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:07,906 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:07,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 20:57:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:09,065 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:09,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 20:57:09,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 20:57:09,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 20:57:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 352 states and 497 transitions. [2023-12-02 20:57:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 497 transitions. [2023-12-02 20:57:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 20:57:10,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:10,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:10,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:10,047 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:10,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 20:57:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:11,210 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:11,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 20:57:11,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:11,747 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 20:57:11,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 20:57:22,253 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 20:57:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 353 states and 498 transitions. [2023-12-02 20:57:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 498 transitions. [2023-12-02 20:57:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 20:57:22,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:22,296 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:22,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:22,297 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:22,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 20:57:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:23,469 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:23,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 20:57:23,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 20:57:24,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-02 20:57:34,588 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 20:57:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 354 states and 499 transitions. [2023-12-02 20:57:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 499 transitions. [2023-12-02 20:57:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 20:57:34,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:34,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:34,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:34,629 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:34,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 20:57:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:35,988 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:36,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 20:57:36,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 20:57:36,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-02 20:57:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 355 states and 500 transitions. [2023-12-02 20:57:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 500 transitions. [2023-12-02 20:57:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 20:57:37,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:37,007 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:37,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:37,008 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:37,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 20:57:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:38,403 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:38,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 20:57:38,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 20:57:38,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 20:57:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 356 states and 501 transitions. [2023-12-02 20:57:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 501 transitions. [2023-12-02 20:57:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 20:57:39,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:39,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:39,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:39,573 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:39,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 20:57:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:40,871 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:41,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:57:41,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 20:57:41,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 20:57:52,034 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 20:57:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:57:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 357 states and 502 transitions. [2023-12-02 20:57:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 502 transitions. [2023-12-02 20:57:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 20:57:52,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:57:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:57:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:57:52,090 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:57:52,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 20:57:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:53,638 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:57:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:57:53,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:57:53,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:57:54,241 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 20:57:54,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 20:58:04,901 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 20:58:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 358 states and 503 transitions. [2023-12-02 20:58:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 503 transitions. [2023-12-02 20:58:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 20:58:04,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:04,952 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:04,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:04,953 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:04,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 20:58:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:06,423 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:06,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:58:06,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 20:58:07,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 20:58:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 359 states and 504 transitions. [2023-12-02 20:58:07,720 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 504 transitions. [2023-12-02 20:58:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 20:58:07,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:07,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:07,721 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:07,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 20:58:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:09,206 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:09,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:58:09,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 20:58:09,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 20:58:10,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 360 states and 505 transitions. [2023-12-02 20:58:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 505 transitions. [2023-12-02 20:58:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 20:58:10,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:10,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:10,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:10,546 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:10,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 20:58:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:12,162 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:12,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:58:12,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 20:58:12,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 20:58:23,596 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 20:58:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 361 states and 506 transitions. [2023-12-02 20:58:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 506 transitions. [2023-12-02 20:58:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 20:58:23,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:23,641 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:23,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:23,642 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:23,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 20:58:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:25,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:25,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:58:25,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 20:58:26,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 20:58:31,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 20:58:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:31,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 362 states and 507 transitions. [2023-12-02 20:58:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 507 transitions. [2023-12-02 20:58:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 20:58:31,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:31,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:31,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:31,401 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:31,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 20:58:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:33,207 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:33,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:58:33,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 20:58:33,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 20:58:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 363 states and 508 transitions. [2023-12-02 20:58:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 508 transitions. [2023-12-02 20:58:34,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 20:58:34,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:34,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:34,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:34,692 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:34,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 20:58:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:36,470 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:36,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 20:58:36,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 20:58:37,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 20:58:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 364 states and 509 transitions. [2023-12-02 20:58:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 509 transitions. [2023-12-02 20:58:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 20:58:38,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:38,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:38,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:38,129 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:38,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 20:58:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:39,910 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:40,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 20:58:40,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 20:58:40,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 20:58:50,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 20:58:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:58:50,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 365 states and 510 transitions. [2023-12-02 20:58:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 510 transitions. [2023-12-02 20:58:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 20:58:50,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:58:50,574 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:58:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:58:50,575 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:58:50,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 20:58:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:52,480 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:58:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:58:52,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 20:58:52,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:58:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 20:58:53,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 20:59:04,180 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 20:59:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:04,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 366 states and 511 transitions. [2023-12-02 20:59:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 511 transitions. [2023-12-02 20:59:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 20:59:04,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:04,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:04,226 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:04,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 20:59:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:06,310 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:06,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 20:59:06,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 20:59:07,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 20:59:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 367 states and 512 transitions. [2023-12-02 20:59:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 512 transitions. [2023-12-02 20:59:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 20:59:08,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:08,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:08,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:08,031 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:08,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 20:59:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:10,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:10,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 20:59:10,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 20:59:10,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 20:59:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 368 states and 513 transitions. [2023-12-02 20:59:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 513 transitions. [2023-12-02 20:59:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 20:59:11,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:11,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:11,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:11,916 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:11,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 20:59:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:14,090 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:14,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 20:59:14,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 20:59:14,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 20:59:25,943 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 20:59:25,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 369 states and 514 transitions. [2023-12-02 20:59:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 514 transitions. [2023-12-02 20:59:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 20:59:25,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:25,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:25,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:25,994 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:25,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 20:59:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:28,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:28,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 20:59:28,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 20:59:29,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 20:59:40,632 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 20:59:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 370 states and 515 transitions. [2023-12-02 20:59:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 515 transitions. [2023-12-02 20:59:40,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 20:59:40,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:40,688 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:40,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:40,689 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:40,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 20:59:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:42,897 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:43,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 20:59:43,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 20:59:43,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-12-02 20:59:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 371 states and 516 transitions. [2023-12-02 20:59:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 516 transitions. [2023-12-02 20:59:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 20:59:44,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:44,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:44,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:44,975 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:44,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 20:59:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:47,329 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:47,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 20:59:47,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 20:59:48,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 20:59:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:59:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 372 states and 517 transitions. [2023-12-02 20:59:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 517 transitions. [2023-12-02 20:59:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 20:59:49,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:59:49,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:59:49,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:59:49,472 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:59:49,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 20:59:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:51,917 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:59:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:59:52,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 20:59:52,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:59:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 20:59:52,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 21:00:02,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:00:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 373 states and 518 transitions. [2023-12-02 21:00:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 518 transitions. [2023-12-02 21:00:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 21:00:02,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:02,498 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:02,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 21:00:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:04,945 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:05,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:00:05,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:00:05,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 21:00:10,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:00:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 374 states and 519 transitions. [2023-12-02 21:00:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 519 transitions. [2023-12-02 21:00:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 21:00:10,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:10,658 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:10,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:10,659 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:10,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 21:00:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:13,362 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:13,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:00:13,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:00:14,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 21:00:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 375 states and 520 transitions. [2023-12-02 21:00:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 520 transitions. [2023-12-02 21:00:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 21:00:15,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:15,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:15,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:15,639 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:15,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 21:00:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:18,361 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:18,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:00:18,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:00:19,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 21:00:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 376 states and 521 transitions. [2023-12-02 21:00:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 521 transitions. [2023-12-02 21:00:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 21:00:20,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:20,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:20,572 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:20,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 21:00:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:22,936 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:23,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:00:23,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:00:23,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 21:00:35,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:00:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 377 states and 522 transitions. [2023-12-02 21:00:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 522 transitions. [2023-12-02 21:00:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 21:00:35,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:35,251 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:35,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:35,252 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:35,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 21:00:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:38,642 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:39,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 21:00:39,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:00:39,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 21:00:50,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:00:51,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 378 states and 523 transitions. [2023-12-02 21:00:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 523 transitions. [2023-12-02 21:00:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:00:51,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:51,041 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:51,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:51,041 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:51,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 21:00:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:53,665 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:54,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:00:54,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 21:00:54,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 21:00:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:00:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 379 states and 524 transitions. [2023-12-02 21:00:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 524 transitions. [2023-12-02 21:00:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 21:00:56,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:00:56,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:00:56,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:00:56,080 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:00:56,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 21:00:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:59,038 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:00:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:00:59,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 21:00:59,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:00:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 21:00:59,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 21:01:01,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 380 states and 525 transitions. [2023-12-02 21:01:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 525 transitions. [2023-12-02 21:01:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 21:01:01,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:01,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:01,560 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:01,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 21:01:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:04,454 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:04,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 21:01:04,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 21:01:05,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 21:01:17,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 381 states and 526 transitions. [2023-12-02 21:01:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 526 transitions. [2023-12-02 21:01:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 21:01:17,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:17,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:17,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:17,068 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:17,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 21:01:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:20,154 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:20,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 21:01:20,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 21:01:21,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 21:01:32,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:01:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:32,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 382 states and 527 transitions. [2023-12-02 21:01:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 527 transitions. [2023-12-02 21:01:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 21:01:32,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:32,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:32,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:32,832 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:32,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 21:01:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:35,965 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:36,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 21:01:36,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 21:01:36,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 21:01:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:38,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 383 states and 528 transitions. [2023-12-02 21:01:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 528 transitions. [2023-12-02 21:01:38,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 21:01:38,617 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:38,618 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:38,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 21:01:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:41,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:42,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 21:01:42,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 21:01:42,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 21:01:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 384 states and 529 transitions. [2023-12-02 21:01:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 529 transitions. [2023-12-02 21:01:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 21:01:44,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:44,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:01:44,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:01:44,543 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:01:44,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 21:01:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:47,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:01:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:48,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 21:01:48,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 21:01:48,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 21:02:00,749 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 21:02:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:00,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 385 states and 530 transitions. [2023-12-02 21:02:00,806 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 530 transitions. [2023-12-02 21:02:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:02:00,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:00,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:02:00,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:02:00,808 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:02:00,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 21:02:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:04,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:02:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:04,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 21:02:04,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 21:02:05,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 21:02:17,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:02:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 386 states and 531 transitions. [2023-12-02 21:02:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 531 transitions. [2023-12-02 21:02:17,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 21:02:17,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:02:17,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:02:17,424 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:02:17,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 21:02:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:20,935 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:02:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:21,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 21:02:21,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 21:02:22,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 21:02:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 387 states and 532 transitions. [2023-12-02 21:02:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 532 transitions. [2023-12-02 21:02:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 21:02:23,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:23,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:02:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:02:23,956 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:02:23,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 21:02:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:27,730 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:02:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:28,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 21:02:28,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 21:02:28,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 21:02:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 388 states and 533 transitions. [2023-12-02 21:02:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 533 transitions. [2023-12-02 21:02:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 21:02:30,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:30,733 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:02:30,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:02:30,734 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:02:30,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 21:02:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:34,428 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:02:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:34,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 21:02:34,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 21:02:35,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2023-12-02 21:02:47,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:02:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 389 states and 534 transitions. [2023-12-02 21:02:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 534 transitions. [2023-12-02 21:02:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 21:02:47,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:02:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:02:47,634 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:02:47,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 21:02:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,354 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:02:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:02:51,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 21:02:52,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 21:03:04,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:03:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:04,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 390 states and 535 transitions. [2023-12-02 21:03:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 535 transitions. [2023-12-02 21:03:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 21:03:04,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:04,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:03:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:03:04,562 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:03:04,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 21:03:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:08,088 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:03:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:08,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 21:03:08,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 21:03:09,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 21:03:11,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:11,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 391 states and 536 transitions. [2023-12-02 21:03:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 536 transitions. [2023-12-02 21:03:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 21:03:11,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:11,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:03:11,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:03:11,250 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:03:11,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 21:03:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:15,355 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:03:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:15,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:03:15,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 21:03:16,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 21:03:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 392 states and 537 transitions. [2023-12-02 21:03:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 537 transitions. [2023-12-02 21:03:18,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 21:03:18,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:18,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:03:18,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:03:18,763 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:03:18,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 21:03:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:22,720 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:03:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:23,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 21:03:23,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 21:03:23,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 21:03:36,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:03:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 393 states and 538 transitions. [2023-12-02 21:03:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 538 transitions. [2023-12-02 21:03:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 21:03:36,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:36,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:03:36,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:03:36,210 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:03:36,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 21:03:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:40,117 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:03:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:40,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 21:03:40,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 21:03:41,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-02 21:03:53,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:03:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 394 states and 539 transitions. [2023-12-02 21:03:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 539 transitions. [2023-12-02 21:03:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 21:03:53,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:53,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:03:53,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:03:53,653 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:03:53,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-02 21:03:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:57,677 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:03:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:58,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 21:03:58,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 21:03:58,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-02 21:04:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 395 states and 540 transitions. [2023-12-02 21:04:01,256 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 540 transitions. [2023-12-02 21:04:01,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 21:04:01,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:01,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:04:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:04:01,257 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:04:01,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-02 21:04:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:05,326 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:04:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:05,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 21:04:05,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 21:04:06,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-02 21:04:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 396 states and 541 transitions. [2023-12-02 21:04:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 541 transitions. [2023-12-02 21:04:09,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 21:04:09,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:09,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:04:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:04:09,057 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:04:09,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-02 21:04:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:13,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:04:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:13,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 21:04:13,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 21:04:14,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-02 21:04:27,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:04:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 397 states and 542 transitions. [2023-12-02 21:04:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 542 transitions. [2023-12-02 21:04:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 21:04:27,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:27,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:04:27,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:04:27,070 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:04:27,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-02 21:04:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:31,149 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:04:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:31,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 21:04:31,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 21:04:32,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-02 21:04:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:04:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 398 states and 543 transitions. [2023-12-02 21:04:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 543 transitions. [2023-12-02 21:04:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 21:04:44,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:44,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:04:44,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:04:44,899 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:04:44,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-02 21:04:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:49,325 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:04:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:49,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 21:04:49,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 21:04:50,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-02 21:04:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 399 states and 544 transitions. [2023-12-02 21:04:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 544 transitions. [2023-12-02 21:04:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 21:04:53,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:53,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:04:53,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:04:53,300 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:04:53,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-12-02 21:04:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:57,536 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:04:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:58,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 21:04:58,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 21:04:58,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2023-12-02 21:05:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 400 states and 545 transitions. [2023-12-02 21:05:01,532 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 545 transitions. [2023-12-02 21:05:01,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 21:05:01,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:05:01,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:05:01,534 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:05:01,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-12-02 21:05:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:05,688 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:05:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:06,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 21:05:06,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 21:05:07,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-12-02 21:05:19,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 401 states and 546 transitions. [2023-12-02 21:05:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 546 transitions. [2023-12-02 21:05:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 21:05:19,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:05:19,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:05:19,886 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:05:19,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-12-02 21:05:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:24,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:05:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:25,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:05:25,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 21:05:26,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-12-02 21:05:38,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 402 states and 547 transitions. [2023-12-02 21:05:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 547 transitions. [2023-12-02 21:05:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 21:05:38,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:38,990 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:05:38,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:05:38,991 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:05:38,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-12-02 21:05:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:43,812 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:05:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:44,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 21:05:44,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 21:05:45,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2023-12-02 21:05:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 403 states and 548 transitions. [2023-12-02 21:05:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 548 transitions. [2023-12-02 21:05:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 21:05:47,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:47,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:05:47,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:05:47,994 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:05:47,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2023-12-02 21:05:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:52,691 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:05:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:53,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:05:53,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 21:05:54,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Ended with exit code 0 [2023-12-02 21:05:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 404 states and 549 transitions. [2023-12-02 21:05:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 549 transitions. [2023-12-02 21:05:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 21:05:56,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:56,986 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:05:56,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:05:56,987 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:05:56,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-12-02 21:06:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:01,647 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:06:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:02,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 21:06:02,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 21:06:03,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2023-12-02 21:06:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 405 states and 550 transitions. [2023-12-02 21:06:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 550 transitions. [2023-12-02 21:06:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 21:06:05,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:05,970 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:06:05,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:06:05,970 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:06:05,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2023-12-02 21:06:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:10,314 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:06:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:10,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 21:06:10,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 21:06:11,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2023-12-02 21:06:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 406 states and 551 transitions. [2023-12-02 21:06:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 551 transitions. [2023-12-02 21:06:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 21:06:15,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:15,232 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:06:15,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:06:15,233 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:06:15,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2023-12-02 21:06:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:20,760 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:06:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:21,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 21:06:21,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 21:06:22,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2023-12-02 21:06:30,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 407 states and 552 transitions. [2023-12-02 21:06:30,903 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 552 transitions. [2023-12-02 21:06:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 21:06:30,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:30,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:06:30,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:06:30,905 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:06:30,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Waiting until timeout for monitored process [2023-12-02 21:06:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:35,955 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:06:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:36,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 21:06:36,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 21:06:37,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Ended with exit code 0 [2023-12-02 21:06:51,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 408 states and 553 transitions. [2023-12-02 21:06:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 553 transitions. [2023-12-02 21:06:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 21:06:51,227 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:51,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:06:51,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:06:51,228 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:06:51,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-12-02 21:06:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:56,116 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:06:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:56,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 21:06:56,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 21:06:57,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Ended with exit code 0 [2023-12-02 21:07:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 409 states and 554 transitions. [2023-12-02 21:07:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 554 transitions. [2023-12-02 21:07:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 21:07:01,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:01,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:07:01,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:07:01,448 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:07:01,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2023-12-02 21:07:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:06,882 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:07:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:07,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 21:07:07,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:08,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 21:07:08,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2023-12-02 21:07:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 410 states and 555 transitions. [2023-12-02 21:07:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 555 transitions. [2023-12-02 21:07:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 21:07:12,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:12,160 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:07:12,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:07:12,161 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:07:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2023-12-02 21:07:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:17,621 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:07:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:18,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 21:07:18,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-02 21:07:19,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6488eb2-db63-4051-9bbb-b5176302ee82/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0