./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/ex3b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/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_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/ex3b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d412468cd64aacfdcefc246e93a3ecceac718c99c9cbd69d8c14d9acc4927672 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:01:53,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:01:53,443 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:01:53,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:01:53,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:01:53,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:01:53,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:01:53,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:01:53,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:01:53,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:01:53,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:01:53,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:01:53,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:01:53,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:01:53,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:01:53,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:01:53,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:01:53,488 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:01:53,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:01:53,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:01:53,489 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:01:53,490 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:01:53,491 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:01:53,492 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:01:53,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:01:53,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:01:53,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:01:53,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:01:53,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:01:53,495 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:01:53,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:01:53,496 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:01:53,497 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_f268632d-0128-4e5e-a4a6-fb7317d841b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d412468cd64aacfdcefc246e93a3ecceac718c99c9cbd69d8c14d9acc4927672 [2023-11-19 04:01:53,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:01:53,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:01:53,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:01:53,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:01:53,856 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:01:53,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-restricted-15/ex3b.c [2023-11-19 04:01:57,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:01:57,267 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:01:57,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/sv-benchmarks/c/termination-restricted-15/ex3b.c [2023-11-19 04:01:57,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/data/778b744ad/76336b94a78347b0bc3268e059cfe191/FLAGd4491a10a [2023-11-19 04:01:57,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/data/778b744ad/76336b94a78347b0bc3268e059cfe191 [2023-11-19 04:01:57,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:01:57,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:01:57,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:57,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:01:57,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:01:57,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd18a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57, skipping insertion in model container [2023-11-19 04:01:57,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:01:57,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:57,546 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:01:57,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:57,571 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:01:57,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57 WrapperNode [2023-11-19 04:01:57,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:57,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:57,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:01:57,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:01:57,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,606 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-19 04:01:57,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:57,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:01:57,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:01:57,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:01:57,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:01:57,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:01:57,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:01:57,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:01:57,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:01:57,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:01:57,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:01:57,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f268632d-0128-4e5e-a4a6-fb7317d841b8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:01:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:01:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:01:57,814 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:01:57,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:01:57,968 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:01:57,986 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:01:57,986 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:01:57,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:57 BoogieIcfgContainer [2023-11-19 04:01:57,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:01:57,992 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:01:57,992 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:01:58,003 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:01:58,003 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:57" (1/1) ... [2023-11-19 04:01:58,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:01:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-19 04:01:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-19 04:01:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:01:58,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,204 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 04:01:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:58,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-19 04:01:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-19 04:01:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:01:58,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:58,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:01:58,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:58,445 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 04:01:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-19 04:01:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-19 04:01:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:01:58,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:58,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:01:58,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:58,591 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 04:01:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-11-19 04:01:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-11-19 04:01:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:01:58,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:58,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:01:58,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:58,802 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 04:01:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2023-11-19 04:01:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2023-11-19 04:01:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:01:59,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:59,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:01:59,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:02:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:02:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2023-11-19 04:02:00,063 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2023-11-19 04:02:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:02:00,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:02:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:02:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:02:00,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:02:00,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:02:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:02:00,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:02:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2023-11-19 04:02:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2023-11-19 04:02:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:02:00,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:02:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:02:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:02:00,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:02:00,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:02:00,339 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 04:02:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:02:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 54 transitions. [2023-11-19 04:02:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2023-11-19 04:02:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:02:00,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:02:00,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:02:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:02:00,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:02:00,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:02:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:02:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:02:02,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 39 states and 61 transitions. [2023-11-19 04:02:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 61 transitions. [2023-11-19 04:02:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:02:02,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:02:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:02:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:02:02,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:02:02,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:02:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:02:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:02:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 44 states and 70 transitions. [2023-11-19 04:02:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 70 transitions. [2023-11-19 04:02:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:02:02,761 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:02:02,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:02:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:02:02,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:02:02,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:02:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 6 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked.