./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2 --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 32bit --witnessprinter.graph.data.programhash ed6536c9cb0e4b2be9a327fc4a25c6bfba6e98b1dfb78e314dd25bca8cbdb087 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:32:17,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:32:17,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:32:17,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:32:17,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:32:17,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:32:17,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:32:17,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:32:17,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:32:17,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:32:17,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:32:17,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:32:17,230 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:32:17,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:32:17,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:32:17,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:32:17,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:32:17,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:32:17,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:32:17,235 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:32:17,236 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:32:17,237 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:32:17,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:32:17,238 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:32:17,239 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:32:17,239 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:32:17,240 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:32:17,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:32:17,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:17,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:32:17,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:32:17,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:32:17,244 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:32:17,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:32:17,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:32:17,245 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_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed6536c9cb0e4b2be9a327fc4a25c6bfba6e98b1dfb78e314dd25bca8cbdb087 [2023-11-21 18:32:17,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:32:17,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:32:17,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:32:17,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:32:17,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:32:17,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench/egcd2-ll.c [2023-11-21 18:32:20,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:32:20,953 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:32:20,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/sv-benchmarks/c/nla-digbench/egcd2-ll.c [2023-11-21 18:32:20,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/data/345a169a7/8fdae44bd4a14307ab8284667ec8cff6/FLAGa258b6cfe [2023-11-21 18:32:20,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/data/345a169a7/8fdae44bd4a14307ab8284667ec8cff6 [2023-11-21 18:32:20,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:32:20,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:32:20,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:20,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:32:20,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:32:20,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:20" (1/1) ... [2023-11-21 18:32:20,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af38162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:20, skipping insertion in model container [2023-11-21 18:32:20,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:20" (1/1) ... [2023-11-21 18:32:21,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:32:21,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:21,271 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:32:21,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:21,359 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:32:21,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21 WrapperNode [2023-11-21 18:32:21,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:21,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:21,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:32:21,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:32:21,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,429 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2023-11-21 18:32:21,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:21,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:32:21,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:32:21,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:32:21,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:32:21,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:32:21,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:32:21,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:32:21,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:21" (1/1) ... [2023-11-21 18:32:21,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:32:21,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:32:21,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9fb7f2d-e3f3-44c5-a100-4a5b25b3937b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:32:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:32:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:32:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:32:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:32:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:32:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:32:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:32:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:32:21,670 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:32:21,672 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:32:22,261 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:32:22,312 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:32:22,312 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:32:22,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:22 BoogieIcfgContainer [2023-11-21 18:32:22,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:32:22,316 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:32:22,316 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:32:22,329 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:32:22,329 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:32:22,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 151 states and 162 transitions. [2023-11-21 18:32:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2023-11-21 18:32:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:32:22,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:22,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:22,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 18:32:22,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:32:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 150 states and 161 transitions. [2023-11-21 18:32:23,012 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2023-11-21 18:32:23,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:32:23,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:32:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 149 states and 160 transitions. [2023-11-21 18:32:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2023-11-21 18:32:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:32:23,445 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:32:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 148 states and 159 transitions. [2023-11-21 18:32:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2023-11-21 18:32:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:32:23,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:32:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 147 states and 158 transitions. [2023-11-21 18:32:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2023-11-21 18:32:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:32:23,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 147 states and 157 transitions. [2023-11-21 18:32:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-21 18:32:23,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:32:23,761 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 150 states and 162 transitions. [2023-11-21 18:32:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 162 transitions. [2023-11-21 18:32:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:32:24,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:24,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:24,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:24,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 151 states and 163 transitions. [2023-11-21 18:32:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 163 transitions. [2023-11-21 18:32:24,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:32:24,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:24,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:24,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:24,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:24,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 153 states and 165 transitions. [2023-11-21 18:32:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 165 transitions. [2023-11-21 18:32:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:32:24,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:24,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:24,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 158 states and 173 transitions. [2023-11-21 18:32:25,623 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 173 transitions. [2023-11-21 18:32:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:32:25,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:25,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:25,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:25,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 159 states and 174 transitions. [2023-11-21 18:32:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 174 transitions. [2023-11-21 18:32:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:32:25,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:25,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:32:25,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 165 states and 184 transitions. [2023-11-21 18:32:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 184 transitions. [2023-11-21 18:32:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:32:27,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:27,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:32:27,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 171 states and 196 transitions. [2023-11-21 18:32:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 196 transitions. [2023-11-21 18:32:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:32:28,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:28,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:28,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:28,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 174 states and 201 transitions. [2023-11-21 18:32:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 201 transitions. [2023-11-21 18:32:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:32:29,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:29,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:32:29,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:30,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 181 states and 215 transitions. [2023-11-21 18:32:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 215 transitions. [2023-11-21 18:32:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:32:30,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:30,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:30,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:31,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 182 states and 216 transitions. [2023-11-21 18:32:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 216 transitions. [2023-11-21 18:32:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:32:31,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:31,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:31,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:33,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 191 states and 234 transitions. [2023-11-21 18:32:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 234 transitions. [2023-11-21 18:32:33,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:32:33,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:33,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:33,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:33,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 201 states and 253 transitions. [2023-11-21 18:32:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions. [2023-11-21 18:32:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:32:36,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:36,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:36,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:36,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 202 states and 254 transitions. [2023-11-21 18:32:36,713 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 254 transitions. [2023-11-21 18:32:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:32:36,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:36,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:36,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:36,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:39,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 213 states and 275 transitions. [2023-11-21 18:32:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 275 transitions. [2023-11-21 18:32:39,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:32:39,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:39,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:39,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:39,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 222 states and 292 transitions. [2023-11-21 18:32:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 292 transitions. [2023-11-21 18:32:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:32:40,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:40,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:40,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 232 states and 310 transitions. [2023-11-21 18:32:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 310 transitions. [2023-11-21 18:32:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:32:42,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:42,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:42,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:42,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 242 states and 329 transitions. [2023-11-21 18:32:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2023-11-21 18:32:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:32:43,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:43,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:43,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:43,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:43,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 243 states and 330 transitions. [2023-11-21 18:32:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 330 transitions. [2023-11-21 18:32:43,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:32:43,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:43,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:43,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:43,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 246 states and 335 transitions. [2023-11-21 18:32:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 335 transitions. [2023-11-21 18:32:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 18:32:43,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:43,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:43,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 249 states and 339 transitions. [2023-11-21 18:32:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 339 transitions. [2023-11-21 18:32:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 18:32:44,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:44,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:44,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:44,673 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 250 states and 340 transitions. [2023-11-21 18:32:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 340 transitions. [2023-11-21 18:32:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:32:45,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:45,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:45,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:32:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 251 states and 341 transitions. [2023-11-21 18:32:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 341 transitions. [2023-11-21 18:32:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 18:32:45,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:45,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:45,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:45,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 265 states and 363 transitions. [2023-11-21 18:32:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 363 transitions. [2023-11-21 18:32:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:32:47,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:47,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:47,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:47,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 266 states and 364 transitions. [2023-11-21 18:32:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 364 transitions. [2023-11-21 18:32:47,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:32:47,650 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:47,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:47,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 282 states and 389 transitions. [2023-11-21 18:32:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 389 transitions. [2023-11-21 18:32:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:32:50,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:50,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:50,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:50,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:54,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 301 states and 420 transitions. [2023-11-21 18:32:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 420 transitions. [2023-11-21 18:32:54,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:32:54,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:54,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:54,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:54,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 304 states and 425 transitions. [2023-11-21 18:32:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 425 transitions. [2023-11-21 18:32:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 18:32:55,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:55,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:55,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:55,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:32:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 305 states and 426 transitions. [2023-11-21 18:32:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 426 transitions. [2023-11-21 18:32:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 18:32:55,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:55,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:55,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:55,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 18:32:55,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 307 states and 429 transitions. [2023-11-21 18:32:55,293 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 429 transitions. [2023-11-21 18:32:55,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 18:32:55,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:55,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:55,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:55,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 18:32:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 308 states and 430 transitions. [2023-11-21 18:32:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 430 transitions. [2023-11-21 18:32:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 18:32:55,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:55,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:55,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:32:55,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 18:33:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:33:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 333 states and 470 transitions. [2023-11-21 18:33:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 470 transitions. [2023-11-21 18:33:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 18:33:03,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:33:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:33:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:33:03,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:33:03,618 INFO L285 TraceCheckSpWp]: Computing forward predicates...