./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/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 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:10:22,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:10:22,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:10:22,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:10:22,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:10:22,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:10:22,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:10:22,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:10:22,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:10:22,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:10:22,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:10:22,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:10:22,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:10:22,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:10:22,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:10:22,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:10:22,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:10:22,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:10:22,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:10:22,971 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:10:22,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:10:22,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:10:22,972 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:10:22,976 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:10:22,977 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:10:22,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:10:22,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:22,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:10:22,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:10:22,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:10:22,979 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:10:22,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:10:22,980 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:10:22,981 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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 [2023-11-19 03:10:23,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:10:23,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:10:23,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:10:23,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:10:23,367 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:10:23,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2023-11-19 03:10:26,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:10:26,641 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:10:26,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2023-11-19 03:10:26,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/data/c7005027e/6a49271a78e04a7cad411ecbf0d421b9/FLAG863e05da1 [2023-11-19 03:10:26,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/data/c7005027e/6a49271a78e04a7cad411ecbf0d421b9 [2023-11-19 03:10:26,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:10:26,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:10:26,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:26,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:10:26,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:10:26,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c6f007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26, skipping insertion in model container [2023-11-19 03:10:26,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:10:26,869 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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i[950,963] [2023-11-19 03:10:26,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:26,896 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:10:26,907 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_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i[950,963] [2023-11-19 03:10:26,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:26,929 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:10:26,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26 WrapperNode [2023-11-19 03:10:26,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:26,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:26,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:10:26,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:10:26,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,960 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-19 03:10:26,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:26,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:10:26,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:10:26,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:10:26,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:10:26,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:10:26,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:10:26,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:10:26,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:26" (1/1) ... [2023-11-19 03:10:26,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:27,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:10:27,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:10:27,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53d6b6d-fe7d-4fd0-9765-1d4450708c73/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:10:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:10:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:10:27,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:10:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:10:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:10:27,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:10:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:10:27,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:10:27,130 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:10:27,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:10:27,307 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:10:27,364 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:10:27,372 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:10:27,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:27 BoogieIcfgContainer [2023-11-19 03:10:27,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:10:27,378 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:10:27,378 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:10:27,407 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:10:27,407 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:27" (1/1) ... [2023-11-19 03:10:27,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:10:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-19 03:10:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-19 03:10:27,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:10:27,513 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:27,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:10:27,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:27,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2023-11-19 03:10:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 03:10:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:10:27,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:27,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:10:27,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2023-11-19 03:10:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-11-19 03:10:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:10:27,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:27,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:28,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:10:28,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2023-11-19 03:10:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2023-11-19 03:10:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:10:28,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:28,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:28,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:10:28,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:29,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2023-11-19 03:10:29,054 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2023-11-19 03:10:29,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:10:29,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:29,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:10:29,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 37 states and 59 transitions. [2023-11-19 03:10:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2023-11-19 03:10:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:10:29,387 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:29,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:29,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:29,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:10:30,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 60 transitions. [2023-11-19 03:10:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2023-11-19 03:10:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:10:30,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:30,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:30,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 67 transitions. [2023-11-19 03:10:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2023-11-19 03:10:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:10:30,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:30,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:30,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:10:30,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:31,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:31,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 74 transitions. [2023-11-19 03:10:31,550 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 74 transitions. [2023-11-19 03:10:31,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:10:31,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:31,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:31,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:31,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:31,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 48 states and 80 transitions. [2023-11-19 03:10:31,902 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 80 transitions. [2023-11-19 03:10:31,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:10:31,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:31,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:31,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 03:10:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 81 transitions. [2023-11-19 03:10:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 81 transitions. [2023-11-19 03:10:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:10:32,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:32,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:32,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 03:10:32,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 57 states and 100 transitions. [2023-11-19 03:10:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 100 transitions. [2023-11-19 03:10:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:10:35,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:35,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:35,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:10:35,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 60 states and 111 transitions. [2023-11-19 03:10:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 111 transitions. [2023-11-19 03:10:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:10:37,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:37,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:37,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:10:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 62 states and 112 transitions. [2023-11-19 03:10:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 112 transitions. [2023-11-19 03:10:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:10:37,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:37,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 03:10:37,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:10:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:44,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 70 states and 139 transitions. [2023-11-19 03:10:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 139 transitions. [2023-11-19 03:10:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:10:44,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:44,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:44,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:10:44,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:10:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 73 states and 148 transitions. [2023-11-19 03:10:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 148 transitions. [2023-11-19 03:10:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:10:49,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:49,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:49,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:10:49,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:10:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 76 states and 162 transitions. [2023-11-19 03:10:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 162 transitions. [2023-11-19 03:10:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:10:50,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:50,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:10:50,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 03:10:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 78 states and 163 transitions. [2023-11-19 03:10:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 163 transitions. [2023-11-19 03:10:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:10:51,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:10:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:10:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:10:51,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 03:10:51,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:10:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:11:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 83 states and 181 transitions. [2023-11-19 03:11:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 181 transitions. [2023-11-19 03:11:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:11:00,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:00,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:00,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 03:11:00,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.