./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0235-2.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_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/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_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0235-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/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_cd05d714-44ea-41d6-81ce-46e8a6051682/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 5243781ee83706d005235269371a592cabf9c2dbc613c235cbe81d6e89d326d7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:15:45,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:15:46,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:15:46,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:15:46,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:15:46,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:15:46,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:15:46,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:15:46,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:15:46,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:15:46,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:15:46,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:15:46,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:15:46,099 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:15:46,099 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:15:46,100 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:15:46,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:15:46,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:15:46,101 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:15:46,102 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:15:46,102 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:15:46,103 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:15:46,104 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:15:46,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:15:46,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:46,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:15:46,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:15:46,108 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:15:46,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:15:46,109 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_cd05d714-44ea-41d6-81ce-46e8a6051682/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5243781ee83706d005235269371a592cabf9c2dbc613c235cbe81d6e89d326d7 [2023-11-19 03:15:46,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:15:46,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:15:46,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:15:46,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:15:46,469 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:15:46,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/memsafety/test-0235-2.i [2023-11-19 03:15:49,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:15:50,102 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:15:50,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/sv-benchmarks/c/memsafety/test-0235-2.i [2023-11-19 03:15:50,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/data/18378e6de/84b24ef131b3485385d7148daa8d3150/FLAG65a0a09b3 [2023-11-19 03:15:50,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/data/18378e6de/84b24ef131b3485385d7148daa8d3150 [2023-11-19 03:15:50,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:15:50,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:15:50,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:50,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:15:50,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:15:50,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:50" (1/1) ... [2023-11-19 03:15:50,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d1ac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:50, skipping insertion in model container [2023-11-19 03:15:50,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:50" (1/1) ... [2023-11-19 03:15:50,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:15:50,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:50,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:15:50,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:51,026 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:15:51,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51 WrapperNode [2023-11-19 03:15:51,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:51,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:51,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:15:51,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:15:51,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,205 INFO L138 Inliner]: procedures = 188, calls = 71, calls flagged for inlining = 25, calls inlined = 55, statements flattened = 871 [2023-11-19 03:15:51,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:51,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:15:51,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:15:51,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:15:51,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:15:51,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:15:51,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:15:51,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:15:51,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:51" (1/1) ... [2023-11-19 03:15:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:51,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:15:51,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:15:51,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd05d714-44ea-41d6-81ce-46e8a6051682/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:15:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:15:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:15:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:15:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:15:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:15:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:15:51,639 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:15:51,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:15:53,251 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:15:53,471 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:15:53,471 INFO L302 CfgBuilder]: Removed 35 assume(true) statements. [2023-11-19 03:15:53,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:53 BoogieIcfgContainer [2023-11-19 03:15:53,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:15:53,489 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:15:53,489 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:15:53,499 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:15:53,500 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:53" (1/1) ... [2023-11-19 03:15:53,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:15:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 659 states and 794 transitions. [2023-11-19 03:15:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 794 transitions. [2023-11-19 03:15:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:15:53,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:53,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:53,710 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 03:15:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 659 states and 793 transitions. [2023-11-19 03:15:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 793 transitions. [2023-11-19 03:15:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:15:53,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:53,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:53,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:53,890 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 [2023-11-19 03:15:53,914 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 03:15:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 658 states and 792 transitions. [2023-11-19 03:15:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 792 transitions. [2023-11-19 03:15:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:15:53,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:53,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:15:53,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,024 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 [2023-11-19 03:15:54,047 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 03:15:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 657 states and 791 transitions. [2023-11-19 03:15:54,143 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 791 transitions. [2023-11-19 03:15:54,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:15:54,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,186 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 03:15:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 657 states and 790 transitions. [2023-11-19 03:15:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 790 transitions. [2023-11-19 03:15:54,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:15:54,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,260 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 [2023-11-19 03:15:54,263 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 03:15:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 656 states and 789 transitions. [2023-11-19 03:15:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 789 transitions. [2023-11-19 03:15:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:15:54,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,403 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 [2023-11-19 03:15:54,462 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 03:15:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 657 states and 790 transitions. [2023-11-19 03:15:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 790 transitions. [2023-11-19 03:15:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:15:54,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,619 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 [2023-11-19 03:15:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:15:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 656 states and 789 transitions. [2023-11-19 03:15:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 789 transitions. [2023-11-19 03:15:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:15:54,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,750 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 [2023-11-19 03:15:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:15:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 655 states and 787 transitions. [2023-11-19 03:15:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 787 transitions. [2023-11-19 03:15:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:15:54,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:54,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:54,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-19 03:15:54,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:54,925 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 [2023-11-19 03:15:54,962 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 03:15:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 656 states and 788 transitions. [2023-11-19 03:15:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 788 transitions. [2023-11-19 03:15:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:15:55,019 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:55,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:55,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:15:55,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:55,178 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 8 treesize of output 1 [2023-11-19 03:15:55,260 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 15 treesize of output 11 [2023-11-19 03:15:55,393 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 03:15:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:55,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 657 states and 790 transitions. [2023-11-19 03:15:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 790 transitions. [2023-11-19 03:15:55,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:15:55,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:55,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-19 03:15:55,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:55,850 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 8 treesize of output 1 [2023-11-19 03:15:55,930 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 [2023-11-19 03:15:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:15:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 656 states and 789 transitions. [2023-11-19 03:15:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 789 transitions. [2023-11-19 03:15:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:15:56,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:56,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:56,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:56,144 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 [2023-11-19 03:15:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:15:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 655 states and 787 transitions. [2023-11-19 03:15:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 787 transitions. [2023-11-19 03:15:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:15:56,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:56,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 03:15:56,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:56,378 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 [2023-11-19 03:15:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:15:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 657 states and 791 transitions. [2023-11-19 03:15:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 791 transitions. [2023-11-19 03:15:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:15:56,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:56,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:56,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:15:56,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:56,855 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 8 treesize of output 1 [2023-11-19 03:15:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:15:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 658 states and 792 transitions. [2023-11-19 03:15:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 792 transitions. [2023-11-19 03:15:57,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:15:57,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:57,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-19 03:15:57,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:57,233 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 [2023-11-19 03:15:57,260 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 [2023-11-19 03:15:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:15:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 657 states and 791 transitions. [2023-11-19 03:15:57,302 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 791 transitions. [2023-11-19 03:15:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:15:57,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:57,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:57,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:57,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:57,446 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 [2023-11-19 03:15:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:15:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 656 states and 789 transitions. [2023-11-19 03:15:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 789 transitions. [2023-11-19 03:15:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:15:57,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:57,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:57,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-19 03:15:57,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:57,693 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 [2023-11-19 03:15:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:15:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 657 states and 790 transitions. [2023-11-19 03:15:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 790 transitions. [2023-11-19 03:15:57,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:15:57,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:57,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:57,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 03:15:57,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:58,011 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 8 treesize of output 1 [2023-11-19 03:15:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:15:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 658 states and 792 transitions. [2023-11-19 03:15:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 792 transitions. [2023-11-19 03:15:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:15:58,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:58,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:58,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:15:58,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:58,417 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 [2023-11-19 03:15:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:15:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 657 states and 791 transitions. [2023-11-19 03:15:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 791 transitions. [2023-11-19 03:15:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:15:58,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:58,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:58,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:15:58,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:58,597 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 [2023-11-19 03:15:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:15:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 656 states and 790 transitions. [2023-11-19 03:15:58,624 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 790 transitions. [2023-11-19 03:15:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:15:58,627 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:58,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:58,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-19 03:15:58,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:58,889 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 [2023-11-19 03:15:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:15:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 658 states and 792 transitions. [2023-11-19 03:15:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 792 transitions. [2023-11-19 03:15:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:15:59,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:59,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:59,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-19 03:15:59,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:59,539 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 [2023-11-19 03:15:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:15:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 660 states and 796 transitions. [2023-11-19 03:15:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 796 transitions. [2023-11-19 03:15:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:15:59,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:59,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:59,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:15:59,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:59,883 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 8 treesize of output 1 [2023-11-19 03:15:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 03:16:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:16:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 659 states and 795 transitions. [2023-11-19 03:16:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 795 transitions. [2023-11-19 03:16:00,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:16:00,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:16:00,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:16:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:16:00,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:16:00,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:16:00,443 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-19 03:16:00,443 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 [2023-11-19 03:16:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 03:16:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:16:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 658 states and 794 transitions. [2023-11-19 03:16:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 794 transitions. [2023-11-19 03:16:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:16:02,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:16:02,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:16:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:16:02,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-19 03:16:02,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:16:02,576 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 8 treesize of output 1 [2023-11-19 03:16:13,288 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-19 03:16:13,289 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 16 treesize of output 22 [2023-11-19 03:16:13,377 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 03:16:13,377 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 11 treesize of output 11 [2023-11-19 03:16:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 03:16:37,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-19 03:16:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:16:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 659 states and 795 transitions. [2023-11-19 03:16:39,338 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 795 transitions. [2023-11-19 03:16:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:16:39,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:16:39,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:16:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:16:39,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:16:39,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:16:40,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 03:16:40,209 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 11 [2023-11-19 03:16:40,218 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 03:16:40,218 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 11 treesize of output 11 [2023-11-19 03:16:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.