./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:56:17,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:56:17,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 23:56:17,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:56:17,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:56:17,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:56:17,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:56:17,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:56:17,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:56:17,571 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:56:17,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:56:17,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:56:17,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:56:17,573 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 23:56:17,575 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 23:56:17,575 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 23:56:17,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:56:17,576 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:56:17,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:56:17,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:56:17,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:56:17,580 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:56:17,581 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:56:17,581 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:56:17,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:56:17,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:56:17,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:56:17,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:56:17,582 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:56:17,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:56:17,583 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_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2024-11-08 23:56:17,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:56:17,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:56:17,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:56:17,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:56:17,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:56:17,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i Unable to find full path for "g++" [2024-11-08 23:56:20,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:56:20,272 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:56:20,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2024-11-08 23:56:20,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/878d0b83c/8f758757eb314142a8f42bcd1b5e62de/FLAGf73508936 [2024-11-08 23:56:20,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/878d0b83c/8f758757eb314142a8f42bcd1b5e62de [2024-11-08 23:56:20,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:56:20,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:56:20,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:56:20,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:56:20,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:56:20,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473ab254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20, skipping insertion in model container [2024-11-08 23:56:20,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:56:20,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:56:20,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:56:20,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:56:20,856 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:56:20,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20 WrapperNode [2024-11-08 23:56:20,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:56:20,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:56:20,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:56:20,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:56:20,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,916 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2024-11-08 23:56:20,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:56:20,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:56:20,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:56:20,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:56:20,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:56:20,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:56:20,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:56:20,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:56:20,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:56:20" (1/1) ... [2024-11-08 23:56:20,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:56:20,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:56:21,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:56:21,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:56:21,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 23:56:21,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:56:21,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 23:56:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 23:56:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 23:56:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:56:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 23:56:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:56:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:56:21,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:56:21,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:56:21,227 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:56:21,694 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-08 23:56:21,694 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:56:21,766 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:56:21,767 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:56:21,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:21 BoogieIcfgContainer [2024-11-08 23:56:21,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:56:21,771 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:56:21,771 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:56:21,783 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:56:21,783 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:21" (1/1) ... [2024-11-08 23:56:21,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:56:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 81 states and 87 transitions. [2024-11-08 23:56:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2024-11-08 23:56:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 23:56:21,907 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:21,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 83 states and 90 transitions. [2024-11-08 23:56:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2024-11-08 23:56:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 23:56:22,437 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:23,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:23,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 85 states and 94 transitions. [2024-11-08 23:56:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2024-11-08 23:56:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 23:56:23,107 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:23,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 86 states and 96 transitions. [2024-11-08 23:56:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-11-08 23:56:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 23:56:23,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:23,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 87 states and 98 transitions. [2024-11-08 23:56:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2024-11-08 23:56:23,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:56:23,782 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:23,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:23,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 88 states and 101 transitions. [2024-11-08 23:56:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2024-11-08 23:56:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:56:23,974 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:23,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 88 states and 100 transitions. [2024-11-08 23:56:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2024-11-08 23:56:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:56:24,144 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 93 states and 109 transitions. [2024-11-08 23:56:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2024-11-08 23:56:25,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:56:25,635 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:25,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 96 states and 116 transitions. [2024-11-08 23:56:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2024-11-08 23:56:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:56:26,540 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:26,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 97 states and 118 transitions. [2024-11-08 23:56:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2024-11-08 23:56:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:56:26,752 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:26,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:27,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 101 states and 127 transitions. [2024-11-08 23:56:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2024-11-08 23:56:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:56:27,809 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:27,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 106 states and 137 transitions. [2024-11-08 23:56:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2024-11-08 23:56:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:56:29,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:29,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 111 states and 149 transitions. [2024-11-08 23:56:32,171 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2024-11-08 23:56:32,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:56:32,172 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 114 states and 156 transitions. [2024-11-08 23:56:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2024-11-08 23:56:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:56:32,463 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:32,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 117 states and 162 transitions. [2024-11-08 23:56:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 162 transitions. [2024-11-08 23:56:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:56:33,060 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 117 states and 161 transitions. [2024-11-08 23:56:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 161 transitions. [2024-11-08 23:56:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:56:33,750 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:33,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:35,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 122 states and 173 transitions. [2024-11-08 23:56:35,981 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 173 transitions. [2024-11-08 23:56:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:56:35,982 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:35,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 128 states and 186 transitions. [2024-11-08 23:56:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 186 transitions. [2024-11-08 23:56:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:56:38,881 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 137 states and 207 transitions. [2024-11-08 23:56:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 207 transitions. [2024-11-08 23:56:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:56:42,514 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:42,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 138 states and 209 transitions. [2024-11-08 23:56:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 209 transitions. [2024-11-08 23:56:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:56:43,113 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 140 states and 212 transitions. [2024-11-08 23:56:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 212 transitions. [2024-11-08 23:56:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 23:56:43,682 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 142 states and 215 transitions. [2024-11-08 23:56:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-08 23:56:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 23:56:45,424 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 23:56:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 141 states and 214 transitions. [2024-11-08 23:56:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 214 transitions. [2024-11-08 23:56:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 23:56:45,862 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:45,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 23:56:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 143 states and 216 transitions. [2024-11-08 23:56:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 216 transitions. [2024-11-08 23:56:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 23:56:46,671 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:56:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:56:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 155 states and 238 transitions. [2024-11-08 23:56:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 238 transitions. [2024-11-08 23:56:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 23:56:55,168 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:56:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:56:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:56:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 162 states and 250 transitions. [2024-11-08 23:57:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 250 transitions. [2024-11-08 23:57:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 23:57:01,868 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 169 states and 269 transitions. [2024-11-08 23:57:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 269 transitions. [2024-11-08 23:57:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 23:57:09,838 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:09,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:14,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 173 states and 275 transitions. [2024-11-08 23:57:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 275 transitions. [2024-11-08 23:57:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 23:57:14,232 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 23:57:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 173 states and 274 transitions. [2024-11-08 23:57:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 274 transitions. [2024-11-08 23:57:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 23:57:15,033 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 23:57:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 177 states and 283 transitions. [2024-11-08 23:57:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 283 transitions. [2024-11-08 23:57:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:57:18,762 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 193 states and 313 transitions. [2024-11-08 23:57:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 313 transitions. [2024-11-08 23:57:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:57:32,380 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:32,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 197 states and 318 transitions. [2024-11-08 23:57:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 318 transitions. [2024-11-08 23:57:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:57:35,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 23:57:40,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 202 states and 323 transitions. [2024-11-08 23:57:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 323 transitions. [2024-11-08 23:57:40,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:57:40,169 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:40,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 23:57:45,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 202 states and 322 transitions. [2024-11-08 23:57:45,450 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 322 transitions. [2024-11-08 23:57:45,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 23:57:45,450 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:45,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:57:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:45,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:57:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:45,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:57:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:57:45,694 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 34 iterations. [2024-11-08 23:57:45,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:57:45 ImpRootNode [2024-11-08 23:57:45,745 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:57:45,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:57:45,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:57:45,746 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:57:45,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:21" (3/4) ... [2024-11-08 23:57:45,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:57:45,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:57:45,754 INFO L158 Benchmark]: Toolchain (without parser) took 85447.54ms. Allocated memory was 140.5MB in the beginning and 775.9MB in the end (delta: 635.4MB). Free memory was 100.0MB in the beginning and 639.0MB in the end (delta: -538.9MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,755 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:45,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.90ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 80.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.49ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,758 INFO L158 Benchmark]: Boogie Preprocessor took 40.23ms. Allocated memory is still 140.5MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,759 INFO L158 Benchmark]: RCFGBuilder took 809.84ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 108.3MB in the end (delta: -31.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,759 INFO L158 Benchmark]: CodeCheck took 83974.02ms. Allocated memory was 140.5MB in the beginning and 775.9MB in the end (delta: 635.4MB). Free memory was 108.3MB in the beginning and 639.9MB in the end (delta: -531.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2024-11-08 23:57:45,760 INFO L158 Benchmark]: Witness Printer took 8.06ms. Allocated memory is still 775.9MB. Free memory was 639.9MB in the beginning and 639.0MB in the end (delta: 912.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:57:45,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 81 locations, 44 error locations. Started 1 CEGAR loops. OverallTime: 83.9s, OverallIterations: 34, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3040 SdHoareTripleChecker+Valid, 21.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2289 mSDsluCounter, 1908 SdHoareTripleChecker+Invalid, 19.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1328 mSDsCounter, 2428 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10783 IncrementalHoareTripleChecker+Invalid, 13211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2428 mSolverCounterUnsat, 580 mSDtfsCounter, 10783 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3612 GetRequests, 3039 SyntacticMatches, 61 SemanticMatches, 512 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110319 ImplicationChecksByTransitivity, 77.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 2101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 29 PerfectInterpolantSequences, 33/48 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 539]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 539. Possible FailurePath: [L524] int c = 0; [L541] struct item *list = ((void *)0); [L542] int length = 0; VAL [c=0, length=0, list={16896:0}] [L544] CALL append(&list) [L531] c++ [L532] struct item *item = malloc(sizeof *item); [L533] EXPR \read(**plist) VAL [c=1, item={-1:0}, plist={16896:0}] [L533] item->next = *plist [L534] EXPR item->next VAL [c=1, item={-1:0}, plist={16896:0}] [L534-L536] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L534-L536] EXPR (item->next) ? item->next->data : malloc(sizeof *item) VAL [c=1, item={-1:0}, plist={16896:0}] [L534-L536] item->data = (item->next) ? item->next->data : malloc(sizeof *item) [L537] *plist = item [L544] RET append(&list) [L545] length++ [L546] COND FALSE !(__VERIFIER_nondet_int() && c < 20) [L547] COND TRUE length > 0 VAL [c=1, length=1, list={16896:0}] [L548] COND FALSE !(length < 0) VAL [c=1, length=1, list={16896:0}] [L551] EXPR \read(*list) VAL [c=1, length=1, list={16896:0}] [L551] EXPR list->next [L551] struct item *next = list->next; [L552] EXPR \read(*list) VAL [c=1, length=1, list={16896:0}, next={0:0}] [L552] free(list) VAL [c=1, length=1, list={16896:0}, next={0:0}] [L552] free(list) VAL [c=1, length=1, list={16896:0}, next={0:0}] [L552] free(list) [L553] list = next [L554] length-- [L556] COND TRUE length > 0 VAL [c=1, list={16896:0}] [L562] return 0; [L541] struct item *list = ((void *)0); [L562] return 0; VAL [\result=0, c=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.90ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 80.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.49ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.23ms. Allocated memory is still 140.5MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 809.84ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 108.3MB in the end (delta: -31.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * CodeCheck took 83974.02ms. Allocated memory was 140.5MB in the beginning and 775.9MB in the end (delta: 635.4MB). Free memory was 108.3MB in the beginning and 639.9MB in the end (delta: -531.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * Witness Printer took 8.06ms. Allocated memory is still 775.9MB. Free memory was 639.9MB in the beginning and 639.0MB in the end (delta: 912.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:57:45,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:57:48,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:57:48,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2024-11-08 23:57:48,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:57:48,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:57:48,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:57:48,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:57:48,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:57:48,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:57:48,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:57:48,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:57:48,360 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 23:57:48,360 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 23:57:48,361 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 23:57:48,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:57:48,361 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:57:48,362 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:57:48,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:57:48,362 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:57:48,366 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:57:48,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:57:48,370 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:57:48,371 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:57:48,372 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:57:48,372 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:57:48,372 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:48,373 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:57:48,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:57:48,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:57:48,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:57:48,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:57:48,374 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:57:48,375 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:48,375 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:57:48,376 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_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2024-11-08 23:57:48,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:57:48,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:57:48,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:57:48,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:57:48,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:57:48,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i Unable to find full path for "g++" [2024-11-08 23:57:50,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:57:51,209 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:57:51,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2024-11-08 23:57:51,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/64b5768b6/3088cee86e8d4ed1a8a66d6afd2bb759/FLAGb59c6750b [2024-11-08 23:57:51,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/data/64b5768b6/3088cee86e8d4ed1a8a66d6afd2bb759 [2024-11-08 23:57:51,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:57:51,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:57:51,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:57:51,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:57:51,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:57:51,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b6e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51, skipping insertion in model container [2024-11-08 23:57:51,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:57:51,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:57:51,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:57:51,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:57:51,902 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:57:51,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51 WrapperNode [2024-11-08 23:57:51,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:57:51,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:57:51,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:57:51,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:57:51,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,957 INFO L138 Inliner]: procedures = 127, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2024-11-08 23:57:51,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:57:51,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:57:51,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:57:51,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:57:51,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:51,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:57:51,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:57:51,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:57:51,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:57:52,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:57:51" (1/1) ... [2024-11-08 23:57:52,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:57:52,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:57:52,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:57:52,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:57:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 23:57:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:57:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 23:57:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 23:57:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 23:57:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:57:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 23:57:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:57:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:57:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:57:52,260 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:57:52,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:57:52,951 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-08 23:57:52,951 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:57:53,017 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:57:53,017 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:57:53,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:57:53 BoogieIcfgContainer [2024-11-08 23:57:53,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:57:53,019 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:57:53,019 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:57:53,029 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:57:53,030 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:57:53" (1/1) ... [2024-11-08 23:57:53,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:57:53,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:53,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 81 states and 87 transitions. [2024-11-08 23:57:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2024-11-08 23:57:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 23:57:53,120 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:53,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:53,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:53,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:53,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:57:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:53,293 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:53,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 23:57:53,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:53,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-08 23:57:53,492 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 23:57:53,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 23:57:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:53,515 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:57:53,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:57:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 83 states and 90 transitions. [2024-11-08 23:57:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2024-11-08 23:57:53,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 23:57:53,624 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:53,625 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:53,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:53,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:53,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:57:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:53,758 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:53,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 23:57:53,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:53,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-08 23:57:53,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-08 23:57:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 23:57:53,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 23:57:53,908 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 23:57:53,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-08 23:57:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:53,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 85 states and 93 transitions. [2024-11-08 23:57:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2024-11-08 23:57:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 23:57:54,270 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:54,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:54,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:54,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:54,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 23:57:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:54,381 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:54,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:57:54,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:54,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-08 23:57:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:54,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 86 states and 95 transitions. [2024-11-08 23:57:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2024-11-08 23:57:54,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 23:57:54,702 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:54,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:54,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:54,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:54,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 23:57:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:54,818 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:54,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:57:54,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:54,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-08 23:57:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:54,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 87 states and 97 transitions. [2024-11-08 23:57:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2024-11-08 23:57:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:57:55,454 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:55,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:55,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:55,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:55,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 23:57:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:55,557 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:55,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:57:55,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:55,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 86 states and 96 transitions. [2024-11-08 23:57:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-11-08 23:57:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:57:55,896 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:55,897 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:55,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:55,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:55,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-08 23:57:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:55,992 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:56,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:57:56,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:56,039 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:57:56,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:56,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 85 states and 95 transitions. [2024-11-08 23:57:56,361 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2024-11-08 23:57:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:57:56,361 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:56,362 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:56,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:56,364 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:56,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-08 23:57:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:56,464 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:56,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:57:56,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:56,506 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:57:56,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:56,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 84 states and 94 transitions. [2024-11-08 23:57:56,552 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-11-08 23:57:56,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:57:56,552 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:56,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:56,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:56,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:56,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-08 23:57:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:56,655 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:56,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:57:56,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:56,722 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:57:56,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-08 23:57:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 83 states and 93 transitions. [2024-11-08 23:57:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-11-08 23:57:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:57:56,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:56,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:56,948 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:56,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-08 23:57:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:57,090 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:57,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 23:57:57,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:57,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-08 23:57:57,212 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-08 23:57:57,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-08 23:57:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:57,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-08 23:57:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 86 states and 99 transitions. [2024-11-08 23:57:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2024-11-08 23:57:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:57:57,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:57,646 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:57,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:57,648 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:57,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-08 23:57:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:57,807 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:57,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:57:57,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:57,881 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 23:57:57,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 23:57:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:57,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-08 23:57:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:57:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 87 states and 100 transitions. [2024-11-08 23:57:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2024-11-08 23:57:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:57:58,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:57:58,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:57:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:57:58,032 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:57:58,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-08 23:57:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:58,167 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:57:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:57:58,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 23:57:58,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:57:58,586 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-08 23:57:58,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 23:57:58,616 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-08 23:57:58,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 23:57:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:57:58,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-08 23:58:10,804 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 [0] [2024-11-08 23:58:11,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 92 states and 107 transitions. [2024-11-08 23:58:11,641 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 107 transitions. [2024-11-08 23:58:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:58:11,642 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:11,642 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:11,645 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:11,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-08 23:58:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:11,796 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:11,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:58:11,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:11,904 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 23:58:11,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 23:58:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:58:11,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-08 23:58:23,117 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 [0] [2024-11-08 23:58:33,311 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 [0] [2024-11-08 23:58:34,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 96 states and 115 transitions. [2024-11-08 23:58:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 115 transitions. [2024-11-08 23:58:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:58:34,532 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:34,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:34,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:34,534 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:34,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-08 23:58:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:34,674 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:34,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 23:58:34,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:34,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-08 23:58:34,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-08 23:58:34,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 23:58:34,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 23:58:34,812 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 23:58:34,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-08 23:58:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 23:58:34,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 23:58:34,930 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 23:58:34,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-08 23:58:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:58:34,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-08 23:58:46,515 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 [0] [2024-11-08 23:58:56,770 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 [0] [2024-11-08 23:58:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 101 states and 123 transitions. [2024-11-08 23:58:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2024-11-08 23:58:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:58:57,935 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:57,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:57,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:57,937 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:57,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-08 23:58:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:58,136 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:58:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:58:58,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 23:58:58,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:58:58,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 23:58:58,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 23:58:58,985 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 23:58:58,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-08 23:58:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:58:59,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-08 23:59:12,087 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 [0] [2024-11-08 23:59:22,442 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 [0] [2024-11-08 23:59:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:27,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 108 states and 140 transitions. [2024-11-08 23:59:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2024-11-08 23:59:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:59:27,598 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:27,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:27,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:27,603 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:27,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-08 23:59:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:27,751 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:27,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:59:27,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:28,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-08 23:59:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 111 states and 147 transitions. [2024-11-08 23:59:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 147 transitions. [2024-11-08 23:59:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:59:28,385 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:28,385 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:28,388 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:28,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-08 23:59:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:28,574 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:28,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 23:59:28,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:29,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-08 23:59:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 114 states and 153 transitions. [2024-11-08 23:59:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 153 transitions. [2024-11-08 23:59:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:59:29,326 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:29,326 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:29,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:29,330 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:29,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-08 23:59:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:29,481 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:29,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:59:29,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:29,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-08 23:59:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 114 states and 152 transitions. [2024-11-08 23:59:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 152 transitions. [2024-11-08 23:59:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:59:31,046 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:31,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:31,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:31,049 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:31,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-08 23:59:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:31,228 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:31,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:59:31,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:31,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-08 23:59:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 23:59:31,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-08 23:59:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 114 states and 151 transitions. [2024-11-08 23:59:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 151 transitions. [2024-11-08 23:59:32,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 23:59:32,090 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:32,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:32,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:32,092 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:32,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-08 23:59:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:32,276 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:32,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:59:32,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:32,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-08 23:59:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 23:59:32,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-08 23:59:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 114 states and 150 transitions. [2024-11-08 23:59:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 150 transitions. [2024-11-08 23:59:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:59:33,318 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:33,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:33,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:33,320 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:33,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-08 23:59:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:33,496 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:33,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 23:59:33,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:34,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 23:59:34,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-08 23:59:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:34,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2024-11-08 23:59:39,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:39,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 119 states and 163 transitions. [2024-11-08 23:59:39,360 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 163 transitions. [2024-11-08 23:59:39,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:59:39,361 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:39,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:39,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:39,365 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:39,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-08 23:59:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:39,550 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:39,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 23:59:39,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:40,414 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 11 treesize of output 7 [2024-11-08 23:59:40,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 23:59:40,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 23:59:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:41,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-08 23:59:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:59:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 125 states and 178 transitions. [2024-11-08 23:59:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 178 transitions. [2024-11-08 23:59:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:59:48,102 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:59:48,102 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:59:48,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:59:48,108 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:59:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-08 23:59:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:48,286 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:59:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:59:48,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:59:48,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:59:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:59:49,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-09 00:00:04,625 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 [0] [2024-11-09 00:00:15,193 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 [0] [2024-11-09 00:00:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 134 states and 198 transitions. [2024-11-09 00:00:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 198 transitions. [2024-11-09 00:00:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:00:21,632 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:21,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:00:21,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:00:21,634 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:00:21,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-09 00:00:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:21,798 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:00:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:21,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:00:21,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:00:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:00:21,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-09 00:00:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 135 states and 200 transitions. [2024-11-09 00:00:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 200 transitions. [2024-11-09 00:00:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:00:23,417 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:23,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:00:23,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:00:23,422 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:00:23,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 00:00:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:23,599 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:00:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:23,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:00:23,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:00:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:00:24,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-09 00:00:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 136 states and 201 transitions. [2024-11-09 00:00:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 201 transitions. [2024-11-09 00:00:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:00:29,279 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:29,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:00:29,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:00:29,282 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:00:29,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-09 00:00:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:29,485 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:00:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:29,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 00:00:29,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:00:29,647 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 11 treesize of output 7 [2024-11-09 00:00:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:00:30,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2024-11-09 00:00:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 138 states and 203 transitions. [2024-11-09 00:00:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 203 transitions. [2024-11-09 00:00:36,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:00:36,410 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:36,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:00:36,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:00:36,415 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:00:36,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-09 00:00:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:36,642 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:00:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:36,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 00:00:36,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:00:37,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:00:38,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 00:00:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:00:38,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-09 00:00:54,704 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 [0] [2024-11-09 00:01:05,481 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 [0] [2024-11-09 00:01:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:01:29,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 150 states and 226 transitions. [2024-11-09 00:01:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2024-11-09 00:01:29,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:01:29,338 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:01:29,338 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:01:29,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:01:29,339 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:01:29,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-09 00:01:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:01:29,600 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:01:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:01:29,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 00:01:29,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:01:29,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:01:29,815 INFO L349 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2024-11-09 00:01:29,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2024-11-09 00:01:31,647 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:01:31,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 00:01:32,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 00:01:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:01:33,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-09 00:01:53,350 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 [0] [2024-11-09 00:02:03,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:02:13,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:02:23,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:02:33,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:02:43,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:02:53,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:03:03,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:03:13,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:03:23,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:03:33,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:03:43,495 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 [0] [2024-11-09 00:03:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:03:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 157 states and 244 transitions. [2024-11-09 00:03:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 244 transitions. [2024-11-09 00:03:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:03:53,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:03:53,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:03:53,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:03:53,353 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:03:53,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-09 00:03:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:03:53,607 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:03:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:03:53,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 00:03:53,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:03:54,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:03:56,969 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:03:56,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2024-11-09 00:03:57,989 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:03:57,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 00:03:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:03:58,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-09 00:04:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 159 states and 252 transitions. [2024-11-09 00:04:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 252 transitions. [2024-11-09 00:04:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:04:08,607 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:08,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:04:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:04:08,610 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:04:08,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-09 00:04:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:08,876 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:04:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:08,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 00:04:08,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:04:09,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:04:09,143 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:04:09,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2024-11-09 00:04:09,181 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:04:09,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 00:04:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:04:09,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-09 00:04:28,760 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 [0] [2024-11-09 00:04:38,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:04:48,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:04:58,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:05:08,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:05:18,847 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 [0] [2024-11-09 00:05:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:05:18,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 162 states and 257 transitions. [2024-11-09 00:05:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions. [2024-11-09 00:05:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:05:18,865 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:05:18,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:05:18,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:05:18,867 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:05:18,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 00:05:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:05:19,170 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:05:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:05:19,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 00:05:19,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:05:20,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:05:20,373 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 11 treesize of output 7 [2024-11-09 00:05:21,334 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-09 00:05:21,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21 [2024-11-09 00:05:21,380 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-11-09 00:05:21,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-11-09 00:05:23,767 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:05:23,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-09 00:05:23,812 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:05:23,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 00:05:25,063 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:05:25,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-09 00:05:25,079 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:05:25,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 00:05:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:05:25,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-09 00:05:49,352 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 [0] [2024-11-09 00:05:59,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:06:09,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:06:19,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:06:29,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:06:39,485 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 [0] [2024-11-09 00:06:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 169 states and 280 transitions. [2024-11-09 00:06:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 280 transitions. [2024-11-09 00:06:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:06:58,030 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:58,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:06:58,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:06:58,034 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:06:58,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-09 00:06:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:58,361 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:06:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:58,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 00:06:58,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:06:58,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:06:58,541 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 11 treesize of output 7 [2024-11-09 00:06:58,646 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-09 00:06:58,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21 [2024-11-09 00:06:58,687 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-11-09 00:06:58,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-11-09 00:06:58,901 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:06:58,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-09 00:06:58,958 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:06:58,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 00:06:59,099 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:06:59,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-09 00:06:59,115 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 00:06:59,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 00:06:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:59,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2024-11-09 00:07:25,160 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 [0] [2024-11-09 00:07:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:07:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 175 states and 289 transitions. [2024-11-09 00:07:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 289 transitions. [2024-11-09 00:07:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:07:34,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:07:34,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:07:34,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:07:34,816 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:07:34,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-09 00:07:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:07:35,130 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:07:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:07:35,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 00:07:35,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:07:35,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:07:35,323 INFO L349 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2024-11-09 00:07:35,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2024-11-09 00:07:35,396 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 00:07:35,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 00:07:36,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 00:07:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:07:36,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-09 00:07:40,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:07:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 176 states and 290 transitions. [2024-11-09 00:07:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 290 transitions. [2024-11-09 00:07:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 00:07:40,257 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:07:40,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:07:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:07:40,261 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:07:40,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-09 00:07:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:07:40,550 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:07:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:07:40,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 00:07:40,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:07:41,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 00:07:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:07:42,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-09 00:08:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:08:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 180 states and 296 transitions. [2024-11-09 00:08:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 296 transitions. [2024-11-09 00:08:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 00:08:03,455 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:08:03,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:08:03,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:08:03,457 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:08:03,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-09 00:08:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:03,770 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:08:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:03,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 00:08:03,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:08:03,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 00:08:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:08:03,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2024-11-09 00:08:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:08:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 182 states and 298 transitions. [2024-11-09 00:08:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 298 transitions. [2024-11-09 00:08:12,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 00:08:12,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:08:12,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:08:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:08:12,185 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:08:12,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-09 00:08:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:12,450 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:08:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:12,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:08:12,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:08:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 00:08:12,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-09 00:08:15,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:08:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 182 states and 297 transitions. [2024-11-09 00:08:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 297 transitions. [2024-11-09 00:08:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:08:15,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:08:15,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:08:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:08:15,909 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:08:15,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-09 00:08:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:16,223 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:08:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:08:16,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 00:08:16,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:08:16,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 00:08:16,328 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 00:08:16,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 00:08:17,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:08:19,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-09 00:08:21,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-09 00:08:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:08:21,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-09 00:09:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 192 states and 316 transitions. [2024-11-09 00:09:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 316 transitions. [2024-11-09 00:09:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:09:03,896 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:03,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:09:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:09:03,898 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:09:03,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2024-11-09 00:09:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:04,164 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:09:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:04,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:09:04,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:09:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:09:04,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2024-11-09 00:09:20,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:20,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 194 states and 319 transitions. [2024-11-09 00:09:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 319 transitions. [2024-11-09 00:09:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:09:20,496 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:20,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:09:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:09:20,500 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:09:20,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-09 00:09:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:20,779 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:09:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:20,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:09:20,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:09:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:09:22,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-11-09 00:10:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:10:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 200 states and 332 transitions. [2024-11-09 00:10:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 332 transitions. [2024-11-09 00:10:06,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:10:06,617 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:10:06,617 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:10:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:10:06,620 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:10:06,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-09 00:10:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:10:06,941 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:10:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:10:07,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:10:07,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:10:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:10:07,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2024-11-09 00:10:40,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:10:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 204 states and 338 transitions. [2024-11-09 00:10:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 338 transitions. [2024-11-09 00:10:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:10:40,212 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:10:40,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:10:40,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:10:40,213 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:10:40,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2024-11-09 00:10:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:10:40,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:10:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:10:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:10:41,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:10:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:10:42,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2024-11-09 00:10:42,008 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 40 iterations. [2024-11-09 00:10:42,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:10:42 ImpRootNode [2024-11-09 00:10:42,044 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:10:42,045 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:10:42,045 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:10:42,045 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:10:42,046 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:57:53" (3/4) ... [2024-11-09 00:10:42,049 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:10:42,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:10:42,051 INFO L158 Benchmark]: Toolchain (without parser) took 770789.06ms. Allocated memory was 69.2MB in the beginning and 197.1MB in the end (delta: 127.9MB). Free memory was 35.8MB in the beginning and 58.1MB in the end (delta: -22.3MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,051 INFO L158 Benchmark]: CDTParser took 3.86ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:10:42,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.56ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.6MB in the beginning and 69.8MB in the end (delta: -34.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.94ms. Allocated memory is still 94.4MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,053 INFO L158 Benchmark]: Boogie Preprocessor took 40.07ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,053 INFO L158 Benchmark]: RCFGBuilder took 1019.49ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 58.8MB in the end (delta: 6.8MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,053 INFO L158 Benchmark]: CodeCheck took 769025.15ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 58.8MB in the beginning and 59.1MB in the end (delta: -291.4kB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,054 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 197.1MB. Free memory was 59.1MB in the beginning and 58.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:10:42,055 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 81 locations, 44 error locations. Started 1 CEGAR loops. OverallTime: 768.9s, OverallIterations: 40, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 546 mSolverCounterUnknown, 4015 SdHoareTripleChecker+Valid, 5532.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3090 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 5521.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2299 mSDsCounter, 3502 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13177 IncrementalHoareTripleChecker+Invalid, 17225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3502 mSolverCounterUnsat, 709 mSDtfsCounter, 13177 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4555 GetRequests, 3881 SyntacticMatches, 88 SemanticMatches, 586 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150297 ImplicationChecksByTransitivity, 386.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 38.2s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 425 ConstructedInterpolants, 15 QuantifiedInterpolants, 3303 SizeOfPredicates, 82 NumberOfNonLiveVariables, 4249 ConjunctsInSsa, 322 ConjunctsInUnsatCore, 39 InterpolantComputations, 32 PerfectInterpolantSequences, 43/68 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 539]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 539. Possible FailurePath: [L524] int c = 0; [L541] struct item *list = ((void *)0); [L542] int length = 0; VAL [c=0, length=0, list={268435468:0}] [L544] CALL append(&list) [L531] c++ [L532] struct item *item = malloc(sizeof *item); [L533] EXPR \read(**plist) VAL [c=1, item={3:0}, plist={268435468:0}] [L533] item->next = *plist [L534] EXPR item->next VAL [c=1, item={3:0}, plist={268435468:0}] [L534-L536] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L534-L536] EXPR (item->next) ? item->next->data : malloc(sizeof *item) VAL [c=1, item={3:0}, plist={268435468:0}] [L534-L536] item->data = (item->next) ? item->next->data : malloc(sizeof *item) [L537] *plist = item [L544] RET append(&list) [L545] length++ [L546] COND FALSE !(__VERIFIER_nondet_int() && c < 20) [L547] COND TRUE length > 0 VAL [c=1, length=1, list={268435468:0}] [L548] COND FALSE !(length < 0) VAL [c=1, length=1, list={268435468:0}] [L551] EXPR \read(*list) VAL [c=1, length=1, list={268435468:0}] [L551] EXPR list->next [L551] struct item *next = list->next; [L552] EXPR \read(*list) VAL [c=1, length=1, list={268435468:0}, next={0:0}] [L552] free(list) VAL [c=1, length=1, list={268435468:0}, next={0:0}] [L552] free(list) VAL [c=1, length=1, list={268435468:0}, next={0:0}] [L552] free(list) [L553] list = next [L554] length-- [L556] COND TRUE length > 0 VAL [c=1, list={268435468:0}] [L562] return 0; [L541] struct item *list = ((void *)0); [L562] return 0; VAL [\result=0, c=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.86ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.56ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.6MB in the beginning and 69.8MB in the end (delta: -34.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.94ms. Allocated memory is still 94.4MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.07ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.49ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 58.8MB in the end (delta: 6.8MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * CodeCheck took 769025.15ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 58.8MB in the beginning and 59.1MB in the end (delta: -291.4kB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 197.1MB. Free memory was 59.1MB in the beginning and 58.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:10:42,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8d4b4c2-0e05-470b-8acd-40930ad26b34/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample