./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.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_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/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_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/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_cad86cc0-3350-4cdc-92ae-8d4179268361/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 1009b309b84d3a678e4f12db10e873a2b96e065352111c00074b04d416cca18d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:59:58,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:59:59,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:59:59,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:59:59,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:59:59,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:59:59,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:59:59,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:59:59,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:59:59,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:59:59,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:59:59,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:59:59,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:59:59,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:59:59,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:59:59,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:59:59,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:59:59,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:59:59,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:59:59,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:59:59,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:59:59,125 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:59:59,126 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:59:59,126 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:59:59,127 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:59:59,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:59:59,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:59:59,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:59:59,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:59:59,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:59:59,131 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:59:59,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:59:59,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:59:59,132 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_cad86cc0-3350-4cdc-92ae-8d4179268361/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1009b309b84d3a678e4f12db10e873a2b96e065352111c00074b04d416cca18d [2023-11-19 02:59:59,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:59:59,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:59:59,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:59:59,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:59:59,431 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:59:59,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c [2023-11-19 03:00:02,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:00:02,864 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:00:02,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c [2023-11-19 03:00:02,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/data/56115f233/b116852f1c90454d8ee6bf76d7d2cb2b/FLAG16cad547d [2023-11-19 03:00:02,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/data/56115f233/b116852f1c90454d8ee6bf76d7d2cb2b [2023-11-19 03:00:02,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:00:02,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:00:02,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:02,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:00:02,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:00:02,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:02" (1/1) ... [2023-11-19 03:00:02,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf74889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:02, skipping insertion in model container [2023-11-19 03:00:02,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:02" (1/1) ... [2023-11-19 03:00:02,931 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:00:03,088 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_cad86cc0-3350-4cdc-92ae-8d4179268361/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c[588,601] [2023-11-19 03:00:03,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:03,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:00:03,133 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_cad86cc0-3350-4cdc-92ae-8d4179268361/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound1.c[588,601] [2023-11-19 03:00:03,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:03,165 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:00:03,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03 WrapperNode [2023-11-19 03:00:03,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:03,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:03,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:00:03,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:00:03,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,225 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-19 03:00:03,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:03,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:00:03,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:00:03,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:00:03,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:00:03,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:00:03,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:00:03,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:00:03,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:03,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:00:03,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:00:03,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:00:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:00:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:00:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:00:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:00:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:00:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:00:03,450 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:00:03,453 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:00:03,662 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:00:03,705 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:00:03,705 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:00:03,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:03 BoogieIcfgContainer [2023-11-19 03:00:03,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:00:03,712 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:00:03,712 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:00:03,722 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:00:03,722 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:03" (1/1) ... [2023-11-19 03:00:03,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:00:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2023-11-19 03:00:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2023-11-19 03:00:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:00:03,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 46 transitions. [2023-11-19 03:00:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2023-11-19 03:00:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:00:04,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:04,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:00:04,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 52 transitions. [2023-11-19 03:00:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2023-11-19 03:00:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:00:04,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:04,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:04,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:00:04,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:00:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 61 transitions. [2023-11-19 03:00:05,279 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2023-11-19 03:00:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:00:05,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:05,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:00:05,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:00:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 66 transitions. [2023-11-19 03:00:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2023-11-19 03:00:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:00:05,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:05,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:05,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:00:05,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 03:00:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 69 transitions. [2023-11-19 03:00:06,018 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2023-11-19 03:00:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:00:06,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:06,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:06,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:00:06,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:00:06,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:06,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 43 states and 87 transitions. [2023-11-19 03:00:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 87 transitions. [2023-11-19 03:00:06,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:00:06,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:06,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:00:06,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:00:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 46 states and 94 transitions. [2023-11-19 03:00:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 94 transitions. [2023-11-19 03:00:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:00:07,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:07,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:00:07,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 03:00:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 46 states and 87 transitions. [2023-11-19 03:00:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2023-11-19 03:00:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 03:00:08,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:08,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:08,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:00:08,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 03:00:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 50 states and 95 transitions. [2023-11-19 03:00:09,887 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 95 transitions. [2023-11-19 03:00:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:00:09,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:09,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:09,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 03:00:09,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:00:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 51 states and 97 transitions. [2023-11-19 03:00:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2023-11-19 03:00:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:00:10,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:10,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:10,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:00:10,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 03:00:10,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 52 states and 100 transitions. [2023-11-19 03:00:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 100 transitions. [2023-11-19 03:00:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 03:00:10,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:10,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:11,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:00:11,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 03:00:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 54 states and 103 transitions. [2023-11-19 03:00:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 103 transitions. [2023-11-19 03:00:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:00:11,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:11,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:11,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:00:11,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 21 proven. 38 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 03:00:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 63 states and 120 transitions. [2023-11-19 03:00:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 120 transitions. [2023-11-19 03:00:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:00:12,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:13,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:00:13,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 21 proven. 44 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 03:00:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 66 states and 126 transitions. [2023-11-19 03:00:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 126 transitions. [2023-11-19 03:00:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 03:00:14,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:14,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:14,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:00:14,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 23 proven. 41 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-19 03:00:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 67 states and 129 transitions. [2023-11-19 03:00:15,223 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 129 transitions. [2023-11-19 03:00:15,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 03:00:15,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:15,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:15,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:00:15,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 03:00:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 71 states and 137 transitions. [2023-11-19 03:00:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 137 transitions. [2023-11-19 03:00:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 03:00:16,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:16,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:16,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:00:16,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 58 proven. 11 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 03:00:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 73 states and 141 transitions. [2023-11-19 03:00:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 141 transitions. [2023-11-19 03:00:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 03:00:17,305 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:17,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:17,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:00:17,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 03:00:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 74 states and 143 transitions. [2023-11-19 03:00:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 143 transitions. [2023-11-19 03:00:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 03:00:18,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:18,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:00:18,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-19 03:00:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 75 states and 144 transitions. [2023-11-19 03:00:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 144 transitions. [2023-11-19 03:00:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 03:00:18,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:18,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:19,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 03:00:19,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 03:00:19,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 76 states and 147 transitions. [2023-11-19 03:00:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 147 transitions. [2023-11-19 03:00:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 03:00:19,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:19,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:00:19,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-11-19 03:00:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 78 states and 150 transitions. [2023-11-19 03:00:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 150 transitions. [2023-11-19 03:00:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 03:00:20,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:21,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 03:00:21,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 03:00:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 80 states and 153 transitions. [2023-11-19 03:00:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 153 transitions. [2023-11-19 03:00:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 03:00:21,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:21,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:21,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:00:21,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 03:00:23,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 45 states and 73 transitions. [2023-11-19 03:00:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 73 transitions. [2023-11-19 03:00:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 03:00:23,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:23,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:23,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:00:23,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 03:00:24,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 45 states and 72 transitions. [2023-11-19 03:00:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2023-11-19 03:00:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 03:00:24,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:25,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:00:25,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 35 proven. 73 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-19 03:00:26,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 38 states and 62 transitions. [2023-11-19 03:00:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2023-11-19 03:00:26,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:00:26,146 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2023-11-19 03:00:26,156 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:00:26,832 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:00:26,835 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:00:26,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:00:26 ImpRootNode [2023-11-19 03:00:26,836 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:00:26,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:00:26,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:00:26,837 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:00:26,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:03" (3/4) ... [2023-11-19 03:00:26,839 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:00:26,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:00:26,847 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 03:00:26,848 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:00:26,848 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:00:26,848 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:00:26,972 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:00:26,973 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:00:26,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:00:26,974 INFO L158 Benchmark]: Toolchain (without parser) took 24082.81ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 167.2MB in the beginning and 267.1MB in the end (delta: -99.9MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,975 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:26,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.47ms. Allocated memory is still 201.3MB. Free memory was 167.2MB in the beginning and 155.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.91ms. Allocated memory is still 201.3MB. Free memory was 155.9MB in the beginning and 154.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,977 INFO L158 Benchmark]: Boogie Preprocessor took 24.53ms. Allocated memory is still 201.3MB. Free memory was 154.2MB in the beginning and 153.3MB in the end (delta: 928.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:26,977 INFO L158 Benchmark]: RCFGBuilder took 458.92ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 139.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,978 INFO L158 Benchmark]: CodeCheck took 23124.15ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 139.9MB in the beginning and 271.3MB in the end (delta: -131.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,979 INFO L158 Benchmark]: Witness Printer took 137.08ms. Allocated memory is still 352.3MB. Free memory was 271.3MB in the beginning and 267.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:00:26,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.4s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1478 SdHoareTripleChecker+Valid, 22.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 465 mSDsluCounter, 1519 SdHoareTripleChecker+Invalid, 18.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 686 mSDsCounter, 3726 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9373 IncrementalHoareTripleChecker+Invalid, 13099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3726 mSolverCounterUnsat, 833 mSDtfsCounter, 9373 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11235 GetRequests, 10615 SyntacticMatches, 394 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43796 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 1420 NumberOfCodeBlocks, 1420 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1395 ConstructedInterpolants, 0 QuantifiedInterpolants, 5193 SizeOfPredicates, 42 NumberOfNonLiveVariables, 3458 ConjunctsInSsa, 416 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 5773/6188 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.47ms. Allocated memory is still 201.3MB. Free memory was 167.2MB in the beginning and 155.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.91ms. Allocated memory is still 201.3MB. Free memory was 155.9MB in the beginning and 154.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.53ms. Allocated memory is still 201.3MB. Free memory was 154.2MB in the beginning and 153.3MB in the end (delta: 928.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.92ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 139.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 23124.15ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 139.9MB in the beginning and 271.3MB in the end (delta: -131.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 137.08ms. Allocated memory is still 352.3MB. Free memory was 271.3MB in the beginning and 267.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:00:27,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad86cc0-3350-4cdc-92ae-8d4179268361/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE