./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL --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 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:30:53,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:30:53,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:30:53,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:30:53,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:30:53,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:30:53,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:30:53,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:30:53,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:30:53,953 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:30:53,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:30:53,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:30:53,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:30:53,957 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:30:53,957 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:30:53,957 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:30:53,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:30:53,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:30:53,959 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:30:53,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:30:53,960 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:30:53,960 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:30:53,961 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:30:53,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:30:53,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:30:53,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:30:53,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:30:53,963 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:30:53,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:30:53,964 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_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b [2023-11-19 03:30:54,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:30:54,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:30:54,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:30:54,348 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:30:54,349 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:30:54,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2023-11-19 03:30:57,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:30:57,819 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:30:57,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2023-11-19 03:30:57,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/data/8ed2bce40/0aa8e734c4d34960999eb2c2b7db5b08/FLAG6029cc49e [2023-11-19 03:30:57,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/data/8ed2bce40/0aa8e734c4d34960999eb2c2b7db5b08 [2023-11-19 03:30:57,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:30:57,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:30:57,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:30:57,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:30:57,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:30:57,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:30:57" (1/1) ... [2023-11-19 03:30:57,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e91c311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:57, skipping insertion in model container [2023-11-19 03:30:57,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:30:57" (1/1) ... [2023-11-19 03:30:57,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:30:58,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:30:58,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:30:58,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:30:58,408 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:30:58,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58 WrapperNode [2023-11-19 03:30:58,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:30:58,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:30:58,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:30:58,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:30:58,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,451 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-11-19 03:30:58,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:30:58,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:30:58,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:30:58,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:30:58,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:30:58,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:30:58,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:30:58,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:30:58,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:30:58,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:30:58,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:30:58,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92a0d960-2ad8-4a10-889a-9cd0c9af64db/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:30:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:30:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:30:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:30:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:30:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:30:58,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:30:58,656 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:30:58,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:30:58,837 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:30:58,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:30:58,942 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:30:58,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:30:58 BoogieIcfgContainer [2023-11-19 03:30:58,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:30:58,949 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:30:58,950 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:30:58,961 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:30:58,961 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:30:58" (1/1) ... [2023-11-19 03:30:58,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:30:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:30:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-19 03:30:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-19 03:30:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:30:59,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:30:59,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:30:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:30:59,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:30:59,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:30:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:30:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:30:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2023-11-19 03:30:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-19 03:30:59,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:30:59,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:30:59,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:30:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:30:59,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:30:59,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:30:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 03:30:59,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 [2023-11-19 03:30:59,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2023-11-19 03:30:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 03:31:00,093 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 03:31:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:31:00,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:00,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:00,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 03:31:00,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:00,142 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-19 03:31:00,142 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 1 case distinctions, treesize of input 9 treesize of output 11 [2023-11-19 03:31:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 03:31:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 03:31:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:31:00,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:00,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:31:00,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:00,946 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-19 03:31:00,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 1 [2023-11-19 03:31:00,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 03:31:00,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2023-11-19 03:31:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-19 03:31:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-19 03:31:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:31:02,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:02,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:02,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:31:02,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:31:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:31:02,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:31:02,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:02,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 03:31:02,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2023-11-19 03:31:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2023-11-19 03:31:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:31:56,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:56,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:56,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:31:56,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2023-11-19 03:31:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2023-11-19 03:31:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:31:57,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:57,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:57,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:31:57,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:31:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:32:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:32:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2023-11-19 03:32:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2023-11-19 03:32:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:32:02,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:32:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:32:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:32:02,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:32:02,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:32:02,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 5 [2023-11-19 03:32:02,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 03:32:02,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 1 [2023-11-19 03:32:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.