./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_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_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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_80b5b256-167a-4f75-ac41-f09de1de962a/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:01:21,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:01:21,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 23:01:21,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:01:21,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:01:21,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:01:21,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:01:21,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:01:21,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:01:21,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:01:21,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:01:21,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:01:21,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:01:21,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:01:21,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:01:21,476 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:01:21,477 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:01:21,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:01:21,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:01:21,478 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:01:21,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:01:21,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:01:21,480 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:01:21,481 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:01:21,481 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:01:21,482 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:01:21,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:01:21,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:01:21,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:01:21,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:01:21,484 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:01:21,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:01:21,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2023-12-02 23:01:21,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:01:21,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:01:21,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:01:21,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:01:21,730 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:01:21,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2023-12-02 23:01:24,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:01:24,754 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:01:24,755 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2023-12-02 23:01:24,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/94579ea0c/d299d1c4438c4b3587a95408c0af14d0/FLAG4f59854ac [2023-12-02 23:01:24,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/94579ea0c/d299d1c4438c4b3587a95408c0af14d0 [2023-12-02 23:01:24,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:01:24,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:01:24,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:01:24,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:01:24,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:01:24,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:24" (1/1) ... [2023-12-02 23:01:24,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286da534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:24, skipping insertion in model container [2023-12-02 23:01:24,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:24" (1/1) ... [2023-12-02 23:01:24,857 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:01:25,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:01:25,296 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:01:25,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:01:25,448 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:01:25,454 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:01:25,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25 WrapperNode [2023-12-02 23:01:25,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:01:25,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:01:25,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:01:25,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:01:25,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,560 INFO L138 Inliner]: procedures = 177, calls = 299, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1659 [2023-12-02 23:01:25,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:01:25,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:01:25,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:01:25,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:01:25,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:01:25,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:01:25,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:01:25,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:01:25,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:25" (1/1) ... [2023-12-02 23:01:25,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:01:25,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:01:25,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:01:25,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:01:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:01:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:01:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:01:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:01:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:01:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:01:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:01:25,951 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:01:25,953 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:01:27,508 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:01:29,177 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:01:29,178 INFO L309 CfgBuilder]: Removed 62 assume(true) statements. [2023-12-02 23:01:29,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:29 BoogieIcfgContainer [2023-12-02 23:01:29,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:01:29,181 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:01:29,181 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:01:29,191 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:01:29,191 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:29" (1/1) ... [2023-12-02 23:01:29,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:01:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 323 states and 494 transitions. [2023-12-02 23:01:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2023-12-02 23:01:29,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:01:29,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 323 states and 492 transitions. [2023-12-02 23:01:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 492 transitions. [2023-12-02 23:01:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:01:29,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:29,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 325 states and 495 transitions. [2023-12-02 23:01:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 495 transitions. [2023-12-02 23:01:29,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:01:29,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:29,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:01:29,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:29,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 324 states and 490 transitions. [2023-12-02 23:01:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 490 transitions. [2023-12-02 23:01:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:01:29,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:29,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:01:29,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 324 states and 486 transitions. [2023-12-02 23:01:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2023-12-02 23:01:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:01:29,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:29,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:01:29,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 324 states and 480 transitions. [2023-12-02 23:01:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2023-12-02 23:01:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 23:01:29,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:29,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:30,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:01:30,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:40,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:01:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 324 states and 474 transitions. [2023-12-02 23:01:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 474 transitions. [2023-12-02 23:01:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:01:40,329 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:40,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:01:40,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:40,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:50,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:00,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:10,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:20,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:20,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 337 states and 489 transitions. [2023-12-02 23:02:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 489 transitions. [2023-12-02 23:02:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:02:20,989 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:20,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:02:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:21,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:02:21,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:02:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 337 states and 487 transitions. [2023-12-02 23:02:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 487 transitions. [2023-12-02 23:02:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 23:02:21,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:21,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:02:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:21,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:02:21,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:02:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 337 states and 485 transitions. [2023-12-02 23:02:21,464 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 485 transitions. [2023-12-02 23:02:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:02:21,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:21,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:02:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:21,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:02:21,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:02:31,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 337 states and 483 transitions. [2023-12-02 23:02:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 483 transitions. [2023-12-02 23:02:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 23:02:31,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:31,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:02:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:32,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:02:32,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:02:42,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:52,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:03:02,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:03:12,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:03:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 340 states and 485 transitions. [2023-12-02 23:03:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 485 transitions. [2023-12-02 23:03:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:03:12,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:12,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:03:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:03:22,572 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:03:22,575 INFO L158 Benchmark]: Toolchain (without parser) took 117785.47ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 84.2MB in the beginning and 145.3MB in the end (delta: -61.1MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,575 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:03:22,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.25ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 84.0MB in the beginning and 112.2MB in the end (delta: -28.2MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.88ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 102.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,577 INFO L158 Benchmark]: Boogie Preprocessor took 126.36ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 91.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,578 INFO L158 Benchmark]: RCFGBuilder took 3491.65ms. Allocated memory was 151.0MB in the beginning and 224.4MB in the end (delta: 73.4MB). Free memory was 91.8MB in the beginning and 162.6MB in the end (delta: -70.7MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,579 INFO L158 Benchmark]: CodeCheck took 113393.55ms. Allocated memory is still 224.4MB. Free memory was 162.6MB in the beginning and 145.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-12-02 23:03:22,582 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 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.25ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 84.0MB in the beginning and 112.2MB in the end (delta: -28.2MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.88ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 102.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.36ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 91.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3491.65ms. Allocated memory was 151.0MB in the beginning and 224.4MB in the end (delta: 73.4MB). Free memory was 91.8MB in the beginning and 162.6MB in the end (delta: -70.7MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. * CodeCheck took 113393.55ms. Allocated memory is still 224.4MB. Free memory was 162.6MB in the beginning and 145.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:03:22,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/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_80b5b256-167a-4f75-ac41-f09de1de962a/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:03:24,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:03:24,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 23:03:24,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:03:24,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:03:24,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:03:24,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:03:24,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:03:24,590 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:03:24,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:03:24,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:03:24,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:03:24,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:03:24,593 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:03:24,594 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:03:24,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:03:24,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:03:24,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:03:24,596 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:03:24,597 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:03:24,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:03:24,598 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:03:24,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:03:24,599 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:03:24,599 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:03:24,600 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:03:24,600 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:03:24,601 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:24,601 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:03:24,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:03:24,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:03:24,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:03:24,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:03:24,603 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:03:24,603 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:24,604 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:03:24,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:03:24,604 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_80b5b256-167a-4f75-ac41-f09de1de962a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2023-12-02 23:03:24,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:03:24,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:03:24,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:03:24,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:03:24,912 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:03:24,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2023-12-02 23:03:27,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:03:27,994 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:03:27,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2023-12-02 23:03:28,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/5c0c859a6/53d011ddddf64d8590ca85a86f1d53eb/FLAG042ce1fe6 [2023-12-02 23:03:28,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/data/5c0c859a6/53d011ddddf64d8590ca85a86f1d53eb [2023-12-02 23:03:28,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:03:28,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:03:28,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:03:28,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:03:28,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:03:28,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fc1788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28, skipping insertion in model container [2023-12-02 23:03:28,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:03:28,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:03:28,623 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 23:03:28,637 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:03:28,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:03:28,732 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:03:28,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:03:28,835 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:03:28,841 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:03:28,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28 WrapperNode [2023-12-02 23:03:28,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:03:28,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:03:28,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:03:28,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:03:28,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,945 INFO L138 Inliner]: procedures = 180, calls = 299, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1332 [2023-12-02 23:03:28,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:03:28,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:03:28,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:03:28,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:03:28,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:28,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:03:29,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:03:29,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:03:29,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:03:29,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:03:28" (1/1) ... [2023-12-02 23:03:29,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:03:29,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:03:29,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:03:29,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:03:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 23:03:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 23:03:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:03:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:03:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 23:03:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:03:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:03:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:03:29,371 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:03:29,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:03:45,150 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:03:45,628 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:03:45,628 INFO L309 CfgBuilder]: Removed 62 assume(true) statements. [2023-12-02 23:03:45,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:03:45 BoogieIcfgContainer [2023-12-02 23:03:45,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:03:45,631 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:03:45,631 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:03:45,641 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:03:45,642 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:03:45" (1/1) ... [2023-12-02 23:03:45,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:03:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 323 states and 494 transitions. [2023-12-02 23:03:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2023-12-02 23:03:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:03:45,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:45,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:45,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:45,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:45,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:03:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:46,035 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:46,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:46,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:46,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:03:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 323 states and 492 transitions. [2023-12-02 23:03:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 492 transitions. [2023-12-02 23:03:46,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:03:46,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:46,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:46,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:03:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:46,494 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:46,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:03:46,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:46,625 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:03:46,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:03:46,627 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:03:46,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-02 23:03:46,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:03:46,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 23:03:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:46,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:03:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 325 states and 495 transitions. [2023-12-02 23:03:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 495 transitions. [2023-12-02 23:03:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:03:47,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:47,194 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:47,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:47,195 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:47,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:03:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:47,477 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:47,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:47,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:47,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:03:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 324 states and 490 transitions. [2023-12-02 23:03:47,617 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 490 transitions. [2023-12-02 23:03:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:03:47,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:47,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:47,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:47,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:47,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:03:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:47,927 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:48,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:48,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:48,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:03:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:48,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 324 states and 486 transitions. [2023-12-02 23:03:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2023-12-02 23:03:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:03:48,053 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:48,053 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:48,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:48,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:48,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:03:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:48,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:48,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:48,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:48,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:03:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 324 states and 480 transitions. [2023-12-02 23:03:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2023-12-02 23:03:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 23:03:48,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:48,522 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:48,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:48,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:48,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:03:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:48,841 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:49,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:49,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:49,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 23:03:50,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:03:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 324 states and 472 transitions. [2023-12-02 23:03:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 472 transitions. [2023-12-02 23:03:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:03:50,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:50,141 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:50,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:50,142 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:50,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 23:03:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:50,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:50,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:03:50,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:51,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 23:03:51,039 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:03:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 337 states and 487 transitions. [2023-12-02 23:03:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 487 transitions. [2023-12-02 23:03:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 23:03:52,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:52,251 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:52,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:52,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:52,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 23:03:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:52,650 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:52,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:52,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:52,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-02 23:03:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 337 states and 485 transitions. [2023-12-02 23:03:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 485 transitions. [2023-12-02 23:03:52,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:03:52,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:52,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:52,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:52,920 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:52,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 23:03:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:53,359 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:53,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:03:53,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:53,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 23:03:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 337 states and 483 transitions. [2023-12-02 23:03:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 483 transitions. [2023-12-02 23:03:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 23:03:53,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:53,603 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:53,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:53,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:53,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 23:03:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:54,045 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:54,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:03:54,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:03:54,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 23:03:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 340 states and 485 transitions. [2023-12-02 23:03:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 485 transitions. [2023-12-02 23:03:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:03:54,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:54,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:54,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:54,435 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:54,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 23:03:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:55,010 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:55,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:03:55,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:03:55,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 23:04:05,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 341 states and 486 transitions. [2023-12-02 23:04:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 486 transitions. [2023-12-02 23:04:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:04:05,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:05,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:05,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:05,527 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:05,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 23:04:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:06,157 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:06,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:04:06,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:04:06,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 23:04:16,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 342 states and 487 transitions. [2023-12-02 23:04:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 487 transitions. [2023-12-02 23:04:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:04:16,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:16,690 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:16,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:16,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:16,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 23:04:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:17,556 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:17,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:04:17,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:04:18,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 23:04:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 343 states and 488 transitions. [2023-12-02 23:04:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 488 transitions. [2023-12-02 23:04:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:04:18,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:18,283 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:18,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:18,284 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:18,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 23:04:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:19,068 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:19,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:04:19,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:04:19,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 23:04:29,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 344 states and 489 transitions. [2023-12-02 23:04:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 489 transitions. [2023-12-02 23:04:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 23:04:29,758 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:29,758 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:29,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:29,759 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:29,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 23:04:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:30,631 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:30,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:04:30,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:04:31,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 23:04:41,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 345 states and 490 transitions. [2023-12-02 23:04:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 490 transitions. [2023-12-02 23:04:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:04:41,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:41,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:41,358 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:41,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 23:04:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:42,275 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:42,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:04:42,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:04:42,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 23:04:53,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 346 states and 491 transitions. [2023-12-02 23:04:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 491 transitions. [2023-12-02 23:04:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 23:04:53,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:53,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:53,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:53,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:53,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 23:04:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:54,070 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:54,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:04:54,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:54,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:04:54,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 23:04:54,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 347 states and 492 transitions. [2023-12-02 23:04:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 492 transitions. [2023-12-02 23:04:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:04:54,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:54,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:54,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:54,864 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:54,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 23:04:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:55,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:56,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:04:56,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:04:56,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-12-02 23:04:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 348 states and 493 transitions. [2023-12-02 23:04:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 493 transitions. [2023-12-02 23:04:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 23:04:56,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:56,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:56,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:56,556 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:56,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 23:04:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:57,640 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:57,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:04:57,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:04:58,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 23:05:08,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 349 states and 494 transitions. [2023-12-02 23:05:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 494 transitions. [2023-12-02 23:05:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:05:08,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:08,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:08,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:08,527 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:08,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 23:05:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:09,670 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:10,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:05:10,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:05:10,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 23:05:20,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 350 states and 495 transitions. [2023-12-02 23:05:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 495 transitions. [2023-12-02 23:05:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:05:20,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:20,662 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:20,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:20,663 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:20,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 23:05:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:21,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:22,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:05:22,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:05:22,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-02 23:05:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 351 states and 496 transitions. [2023-12-02 23:05:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 496 transitions. [2023-12-02 23:05:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:05:22,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:22,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:22,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:22,746 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:22,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 23:05:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:23,965 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:24,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:05:24,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:05:24,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 23:05:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:24,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 352 states and 497 transitions. [2023-12-02 23:05:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 497 transitions. [2023-12-02 23:05:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 23:05:24,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:24,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:24,930 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:24,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 23:05:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:26,141 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:26,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:05:26,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:05:26,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 23:05:37,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 353 states and 498 transitions. [2023-12-02 23:05:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 498 transitions. [2023-12-02 23:05:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 23:05:37,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:37,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:37,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:37,261 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:37,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 23:05:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:38,515 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:38,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:05:38,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:05:39,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 23:05:39,047 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:05:49,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 354 states and 499 transitions. [2023-12-02 23:05:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 499 transitions. [2023-12-02 23:05:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 23:05:49,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:49,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:49,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:49,620 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:49,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 23:05:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:50,850 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:51,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:05:51,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:05:51,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 23:05:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 355 states and 500 transitions. [2023-12-02 23:05:51,927 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 500 transitions. [2023-12-02 23:05:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 23:05:51,927 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:51,927 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:51,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:51,928 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:51,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 23:05:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:53,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:53,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:05:53,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:05:53,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-12-02 23:05:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 356 states and 501 transitions. [2023-12-02 23:05:54,426 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 501 transitions. [2023-12-02 23:05:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 23:05:54,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:54,427 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:54,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:54,428 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:54,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 23:05:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:55,914 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:56,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:05:56,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:05:56,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 23:06:07,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:06:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 357 states and 502 transitions. [2023-12-02 23:06:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 502 transitions. [2023-12-02 23:06:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:06:07,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:07,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:07,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:07,239 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:07,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 23:06:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:08,811 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:09,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:06:09,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:06:09,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 23:06:20,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:06:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 358 states and 503 transitions. [2023-12-02 23:06:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 503 transitions. [2023-12-02 23:06:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:06:20,152 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:20,152 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:20,153 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:20,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 23:06:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:21,687 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:22,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:06:22,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:06:22,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 23:06:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 359 states and 504 transitions. [2023-12-02 23:06:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 504 transitions. [2023-12-02 23:06:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:06:22,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:22,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:22,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:22,941 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:22,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 23:06:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:24,443 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:24,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:06:24,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:06:25,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 23:06:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 360 states and 505 transitions. [2023-12-02 23:06:25,859 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 505 transitions. [2023-12-02 23:06:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:06:25,859 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:25,859 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:25,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:25,860 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:25,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 23:06:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:27,753 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:28,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:06:28,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:06:28,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-12-02 23:06:39,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:06:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 361 states and 506 transitions. [2023-12-02 23:06:39,226 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 506 transitions. [2023-12-02 23:06:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:06:39,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:39,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:39,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:39,228 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:39,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 23:06:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:40,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:41,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:06:41,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:06:41,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 23:06:52,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:06:52,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 362 states and 507 transitions. [2023-12-02 23:06:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 507 transitions. [2023-12-02 23:06:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:06:52,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:52,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:52,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:52,342 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 23:06:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:54,104 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:54,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:06:54,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:06:54,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 23:06:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 363 states and 508 transitions. [2023-12-02 23:06:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 508 transitions. [2023-12-02 23:06:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:06:55,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:55,594 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:55,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:55,595 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:55,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 23:06:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:57,438 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:57,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:06:57,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:06:58,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 23:06:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 364 states and 509 transitions. [2023-12-02 23:06:59,060 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 509 transitions. [2023-12-02 23:06:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:06:59,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:59,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:59,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:59,062 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:59,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 23:07:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:00,783 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:01,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:07:01,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:07:01,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2023-12-02 23:07:11,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 365 states and 510 transitions. [2023-12-02 23:07:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 510 transitions. [2023-12-02 23:07:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 23:07:11,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:11,187 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:11,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:11,188 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:11,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 23:07:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:13,025 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:13,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:07:13,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:07:13,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 23:07:24,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 366 states and 511 transitions. [2023-12-02 23:07:24,815 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 511 transitions. [2023-12-02 23:07:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:07:24,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:24,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:24,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:24,816 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:24,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 23:07:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:26,732 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:27,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:07:27,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:07:27,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 23:07:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 367 states and 512 transitions. [2023-12-02 23:07:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 512 transitions. [2023-12-02 23:07:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 23:07:28,510 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:28,511 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:28,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 23:07:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:30,706 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:31,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:07:31,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:07:31,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 23:07:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 368 states and 513 transitions. [2023-12-02 23:07:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 513 transitions. [2023-12-02 23:07:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 23:07:32,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:32,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:32,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:32,350 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:32,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 23:07:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:34,629 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:35,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:07:35,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:07:35,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 23:07:46,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 369 states and 514 transitions. [2023-12-02 23:07:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 514 transitions. [2023-12-02 23:07:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:07:46,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:46,615 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:46,616 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:46,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 23:07:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:48,699 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:49,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:07:49,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:07:49,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-12-02 23:07:55,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:55,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 370 states and 515 transitions. [2023-12-02 23:07:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 515 transitions. [2023-12-02 23:07:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 23:07:55,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:55,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:55,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:55,487 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:55,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 23:07:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:57,694 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:58,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:07:58,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:07:58,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-12-02 23:07:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 371 states and 516 transitions. [2023-12-02 23:07:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 516 transitions. [2023-12-02 23:07:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:07:59,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:59,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:59,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:59,718 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:59,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 23:08:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:02,033 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:02,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:08:02,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:08:02,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 23:08:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 372 states and 517 transitions. [2023-12-02 23:08:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 517 transitions. [2023-12-02 23:08:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 23:08:04,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:04,166 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:04,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:04,167 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:04,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 23:08:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:06,324 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:06,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:08:06,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:08:07,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 23:08:18,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:08:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 373 states and 518 transitions. [2023-12-02 23:08:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 518 transitions. [2023-12-02 23:08:18,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 23:08:18,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:18,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:18,598 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:18,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 23:08:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:21,057 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:21,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:08:21,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:08:21,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 23:08:33,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:08:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 374 states and 519 transitions. [2023-12-02 23:08:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 519 transitions. [2023-12-02 23:08:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 23:08:33,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:33,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:33,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:33,302 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:33,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 23:08:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:35,879 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:36,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:08:36,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:08:36,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 23:08:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 375 states and 520 transitions. [2023-12-02 23:08:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 520 transitions. [2023-12-02 23:08:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:08:38,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:38,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:38,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:38,134 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:38,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 23:08:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:40,482 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:40,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:08:40,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:08:41,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 23:08:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 376 states and 521 transitions. [2023-12-02 23:08:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 521 transitions. [2023-12-02 23:08:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 23:08:42,859 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:42,859 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:42,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:42,860 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:42,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 23:08:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:45,479 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:45,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:08:45,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:08:46,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 23:08:57,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:08:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 377 states and 522 transitions. [2023-12-02 23:08:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 522 transitions. [2023-12-02 23:08:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 23:08:57,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:57,999 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:57,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:58,000 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:58,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 23:09:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:00,566 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:01,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:09:01,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:09:01,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 23:09:07,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 378 states and 523 transitions. [2023-12-02 23:09:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 523 transitions. [2023-12-02 23:09:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:09:07,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:07,290 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:07,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:07,291 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:07,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 23:09:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:09,988 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:10,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:09:10,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:09:10,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-12-02 23:09:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 379 states and 524 transitions. [2023-12-02 23:09:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 524 transitions. [2023-12-02 23:09:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 23:09:12,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:12,485 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:12,486 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:12,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 23:09:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:15,382 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:15,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:09:15,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:09:16,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 23:09:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 380 states and 525 transitions. [2023-12-02 23:09:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 525 transitions. [2023-12-02 23:09:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 23:09:17,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:17,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:17,974 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:17,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 23:09:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:20,936 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:21,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:09:21,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:09:21,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 23:09:33,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 381 states and 526 transitions. [2023-12-02 23:09:33,783 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 526 transitions. [2023-12-02 23:09:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:09:33,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:33,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:33,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:33,784 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:33,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 23:09:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:36,782 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:37,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 23:09:37,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:09:37,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 23:09:49,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 382 states and 527 transitions. [2023-12-02 23:09:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 527 transitions. [2023-12-02 23:09:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 23:09:49,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:49,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:49,615 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:49,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 23:09:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:52,852 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:53,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:09:53,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:09:53,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-12-02 23:09:55,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 383 states and 528 transitions. [2023-12-02 23:09:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 528 transitions. [2023-12-02 23:09:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 23:09:55,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:55,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:55,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:55,754 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:55,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 23:09:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:59,029 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:59,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 23:09:59,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:10:00,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 23:10:02,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 384 states and 529 transitions. [2023-12-02 23:10:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 529 transitions. [2023-12-02 23:10:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 23:10:02,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:02,023 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:02,024 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:02,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 23:10:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:05,404 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:05,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:10:05,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:10:06,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 23:10:18,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:10:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 385 states and 530 transitions. [2023-12-02 23:10:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 530 transitions. [2023-12-02 23:10:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 23:10:18,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:18,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:18,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:18,665 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:18,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 23:10:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:22,026 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:22,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 23:10:22,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:10:23,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 23:10:35,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:10:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 386 states and 531 transitions. [2023-12-02 23:10:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 531 transitions. [2023-12-02 23:10:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 23:10:35,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:35,168 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:35,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 23:10:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:38,614 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:39,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:10:39,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:10:39,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 23:10:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 387 states and 532 transitions. [2023-12-02 23:10:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 532 transitions. [2023-12-02 23:10:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 23:10:41,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:41,829 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:41,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:41,830 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:41,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 23:10:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:44,842 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:45,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 23:10:45,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:10:46,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 23:10:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 388 states and 533 transitions. [2023-12-02 23:10:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 533 transitions. [2023-12-02 23:10:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 23:10:48,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:48,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:48,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:48,145 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:48,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 23:10:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:51,704 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:52,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 23:10:52,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:10:52,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 23:11:05,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:11:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 389 states and 534 transitions. [2023-12-02 23:11:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 534 transitions. [2023-12-02 23:11:05,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 23:11:05,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:05,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:05,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:05,101 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:05,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 23:11:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:08,293 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:08,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:11:08,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:11:09,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 23:11:21,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:11:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 390 states and 535 transitions. [2023-12-02 23:11:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 535 transitions. [2023-12-02 23:11:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 23:11:21,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:21,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:21,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:21,816 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:21,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 23:11:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:25,518 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:25,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 23:11:25,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:11:26,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 23:11:29,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 391 states and 536 transitions. [2023-12-02 23:11:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 536 transitions. [2023-12-02 23:11:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 23:11:29,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:29,092 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:29,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:29,093 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:29,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 23:11:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:32,989 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:33,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:11:33,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:11:34,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 23:11:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 392 states and 537 transitions. [2023-12-02 23:11:36,515 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 537 transitions. [2023-12-02 23:11:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 23:11:36,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:36,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:36,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:36,517 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:36,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 23:11:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:40,237 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:40,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:11:40,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:11:41,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 23:11:53,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:11:53,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 393 states and 538 transitions. [2023-12-02 23:11:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 538 transitions. [2023-12-02 23:11:53,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 23:11:53,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:53,990 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:53,991 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:53,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 23:11:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:57,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:58,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 23:11:58,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:11:59,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-02 23:12:07,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:12:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:12:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 394 states and 539 transitions. [2023-12-02 23:12:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 539 transitions. [2023-12-02 23:12:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 23:12:07,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:12:07,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:12:07,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:12:07,923 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:12:07,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-02 23:12:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:11,982 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:12:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:12,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:12:12,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:12:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:12:13,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-02 23:12:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:12:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 395 states and 540 transitions. [2023-12-02 23:12:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 540 transitions. [2023-12-02 23:12:15,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 23:12:15,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:12:15,818 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:12:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:12:15,819 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:12:15,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-02 23:12:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:19,966 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:12:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:20,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 23:12:20,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:12:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:12:21,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-02 23:12:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:12:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 396 states and 541 transitions. [2023-12-02 23:12:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 541 transitions. [2023-12-02 23:12:23,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 23:12:23,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:12:23,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:12:23,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:12:23,892 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:12:23,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-02 23:12:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:28,278 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:12:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:28,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 23:12:28,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:12:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:12:29,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-02 23:12:42,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:12:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:12:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 397 states and 542 transitions. [2023-12-02 23:12:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 542 transitions. [2023-12-02 23:12:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 23:12:42,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:12:42,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:12:42,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:12:42,367 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:12:42,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-02 23:12:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:46,685 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:12:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:12:47,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:12:47,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:12:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:12:48,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-02 23:13:00,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:13:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:13:00,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 398 states and 543 transitions. [2023-12-02 23:13:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 543 transitions. [2023-12-02 23:13:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 23:13:00,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:13:00,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:13:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:13:00,888 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:13:00,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-02 23:13:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:05,180 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:13:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:05,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 23:13:05,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:13:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:13:06,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-02 23:13:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:13:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 399 states and 544 transitions. [2023-12-02 23:13:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 544 transitions. [2023-12-02 23:13:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 23:13:09,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:13:09,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:13:09,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:13:09,424 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:13:09,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-12-02 23:13:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:13,761 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:13:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:14,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:13:14,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:13:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:13:15,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2023-12-02 23:13:18,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:13:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 400 states and 545 transitions. [2023-12-02 23:13:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 545 transitions. [2023-12-02 23:13:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 23:13:18,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:13:18,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:13:18,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:13:18,059 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:13:18,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-12-02 23:13:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:22,618 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:13:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:23,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:13:23,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:13:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:13:24,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-12-02 23:13:35,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:13:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:13:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 401 states and 546 transitions. [2023-12-02 23:13:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 546 transitions. [2023-12-02 23:13:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 23:13:35,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:13:35,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:13:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:13:35,721 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:13:35,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-12-02 23:13:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:40,336 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:13:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:40,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:13:40,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:13:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:13:41,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-12-02 23:13:54,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:13:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:13:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 402 states and 547 transitions. [2023-12-02 23:13:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 547 transitions. [2023-12-02 23:13:54,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 23:13:54,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:13:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:13:54,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:13:54,996 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:13:54,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-12-02 23:13:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:13:59,719 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:14:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:00,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:14:00,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:14:01,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2023-12-02 23:14:04,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:04,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 403 states and 548 transitions. [2023-12-02 23:14:04,437 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 548 transitions. [2023-12-02 23:14:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 23:14:04,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:04,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:14:04,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:14:04,438 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:14:04,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2023-12-02 23:14:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:09,519 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:14:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:10,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:14:10,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:14:11,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Forceful destruction successful, exit code 0 [2023-12-02 23:14:14,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 404 states and 549 transitions. [2023-12-02 23:14:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 549 transitions. [2023-12-02 23:14:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 23:14:14,248 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:14,248 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:14:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:14:14,249 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:14:14,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-12-02 23:14:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:19,205 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:14:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:19,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 23:14:19,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:14:20,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2023-12-02 23:14:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 405 states and 550 transitions. [2023-12-02 23:14:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 550 transitions. [2023-12-02 23:14:24,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 23:14:24,227 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:24,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:14:24,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:14:24,229 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:14:24,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2023-12-02 23:14:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:29,177 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:14:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:29,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:14:29,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:14:30,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2023-12-02 23:14:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 406 states and 551 transitions. [2023-12-02 23:14:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 551 transitions. [2023-12-02 23:14:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 23:14:34,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:34,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:14:34,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:14:34,210 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:14:34,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2023-12-02 23:14:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:39,228 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:14:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:39,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 23:14:39,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:14:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:14:40,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2023-12-02 23:14:54,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:14:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:14:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 407 states and 552 transitions. [2023-12-02 23:14:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 552 transitions. [2023-12-02 23:14:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 23:14:54,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:14:54,259 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:14:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:14:54,259 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:14:54,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Waiting until timeout for monitored process [2023-12-02 23:14:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:14:59,570 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:15:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:00,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:15:00,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:15:01,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Ended with exit code 0 [2023-12-02 23:15:14,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:15:14,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 408 states and 553 transitions. [2023-12-02 23:15:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 553 transitions. [2023-12-02 23:15:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 23:15:14,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:14,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:15:14,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:15:14,839 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:15:14,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-12-02 23:15:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:20,355 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:15:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:20,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:15:20,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:15:22,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Ended with exit code 0 [2023-12-02 23:15:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 409 states and 554 transitions. [2023-12-02 23:15:25,707 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 554 transitions. [2023-12-02 23:15:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 23:15:25,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:25,707 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:15:25,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:15:25,708 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:15:25,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2023-12-02 23:15:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:30,874 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:15:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:15:31,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 23:15:31,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:15:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:15:32,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2023-12-02 23:15:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:15:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 410 states and 555 transitions. [2023-12-02 23:15:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 555 transitions. [2023-12-02 23:15:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 23:15:36,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:15:36,296 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:15:36,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:15:36,297 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:15:36,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b256-167a-4f75-ac41-f09de1de962a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process