./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/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_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26b0e9a1f24f001efea295bcd9797908bff3501d4b08818e2be1159233981d8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:41:56,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:41:56,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:41:56,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:41:56,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:41:56,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:41:56,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:41:56,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:41:56,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:41:56,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:41:56,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:41:56,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:41:56,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:41:56,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:41:56,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:41:56,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:41:56,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:41:56,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:41:56,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:41:56,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:41:56,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:41:56,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:41:56,892 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:41:56,893 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:41:56,893 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:41:56,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:41:56,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:41:56,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:41:56,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:41:56,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:41:56,895 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:41:56,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:41:56,896 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:41:56,897 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_c4bc6325-5176-46bb-a67a-4f1ced510480/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26b0e9a1f24f001efea295bcd9797908bff3501d4b08818e2be1159233981d8d [2023-11-19 03:41:57,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:41:57,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:41:57,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:41:57,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:41:57,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:41:57,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2023-11-19 03:42:00,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:42:00,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:42:00,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2023-11-19 03:42:00,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/data/bcdb9432e/0416e9f1bd5e48b6b8c56ea52f84158e/FLAG7a58c4e60 [2023-11-19 03:42:00,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/data/bcdb9432e/0416e9f1bd5e48b6b8c56ea52f84158e [2023-11-19 03:42:00,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:42:00,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:42:00,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:00,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:42:00,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:42:00,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:00" (1/1) ... [2023-11-19 03:42:00,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e9c7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:00, skipping insertion in model container [2023-11-19 03:42:00,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:00" (1/1) ... [2023-11-19 03:42:00,843 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:42:01,044 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c[524,537] [2023-11-19 03:42:01,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:01,075 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:42:01,089 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c[524,537] [2023-11-19 03:42:01,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:42:01,114 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:42:01,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01 WrapperNode [2023-11-19 03:42:01,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:42:01,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:01,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:42:01,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:42:01,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,162 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-11-19 03:42:01,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:42:01,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:42:01,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:42:01,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:42:01,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:42:01,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:42:01,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:42:01,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:42:01,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:42:01,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:42:01,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:42:01,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4bc6325-5176-46bb-a67a-4f1ced510480/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:42:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:42:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:42:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:42:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:42:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:42:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:42:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:42:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:42:01,365 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:42:01,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:42:01,558 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:42:01,594 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:42:01,595 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:42:01,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:42:01 BoogieIcfgContainer [2023-11-19 03:42:01,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:42:01,603 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:42:01,604 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:42:01,615 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:42:01,616 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:42:01" (1/1) ... [2023-11-19 03:42:01,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:42:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:42:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-19 03:42:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-19 03:42:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:42:01,712 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:42:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:42:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:42:01,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:42:01,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:42:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:42:03,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 03:42:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:42:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2023-11-19 03:42:03,571 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-11-19 03:42:03,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:42:03,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:42:03,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:42:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:42:03,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:42:03,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:42:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:42:06,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:42:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2023-11-19 03:42:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-11-19 03:42:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:42:06,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:42:06,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:42:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:42:06,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 03:42:06,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:42:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:42:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:42:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2023-11-19 03:42:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2023-11-19 03:42:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:42:20,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:42:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:42:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:42:20,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:42:20,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:42:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:42:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:42:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2023-11-19 03:42:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2023-11-19 03:42:21,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:42:21,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:42:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:42:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:42:21,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:42:21,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:42:53,049 WARN L293 SmtUtils]: Spent 9.86s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)