./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/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 c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:19:07,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:19:08,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:19:08,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:19:08,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:19:08,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:19:08,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:19:08,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:19:08,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:19:08,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:19:08,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:19:08,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:19:08,188 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:19:08,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:19:08,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:19:08,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:19:08,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:19:08,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:19:08,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:19:08,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:19:08,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:19:08,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:19:08,197 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:19:08,198 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:19:08,198 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:19:08,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:19:08,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:19:08,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:19:08,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:19:08,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:19:08,203 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:19:08,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:19:08,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:19:08,205 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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2023-11-19 03:19:08,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:19:08,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:19:08,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:19:08,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:19:08,627 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:19:08,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-11-19 03:19:12,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:19:12,312 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:19:12,313 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-11-19 03:19:12,322 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/data/55d67c509/b0e6371fc5d94e5494914daa2bc10ef4/FLAG846ca1fd7 [2023-11-19 03:19:12,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/data/55d67c509/b0e6371fc5d94e5494914daa2bc10ef4 [2023-11-19 03:19:12,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:19:12,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:19:12,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:19:12,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:19:12,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:19:12,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cba7c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12, skipping insertion in model container [2023-11-19 03:19:12,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:19:12,583 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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2023-11-19 03:19:12,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:19:12,619 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:19:12,635 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_0abb87e4-1b14-4b67-99fc-9d0197a13c10/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2023-11-19 03:19:12,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:19:12,665 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:19:12,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12 WrapperNode [2023-11-19 03:19:12,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:19:12,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:19:12,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:19:12,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:19:12,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,711 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-11-19 03:19:12,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:19:12,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:19:12,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:19:12,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:19:12,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:19:12,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:19:12,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:19:12,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:19:12,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:12" (1/1) ... [2023-11-19 03:19:12,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:19:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:19:12,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:19:12,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:19:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:19:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:19:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:19:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:19:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:19:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:19:12,918 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:19:12,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:19:13,127 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:19:13,239 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:19:13,246 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:19:13,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:19:13 BoogieIcfgContainer [2023-11-19 03:19:13,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:19:13,253 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:19:13,254 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:19:13,267 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:19:13,267 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:19:13" (1/1) ... [2023-11-19 03:19:13,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:19:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-19 03:19:13,376 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-19 03:19:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:13,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:13,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:13,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:13,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:14,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:14,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:14,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:14,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:14,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:14,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:14,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:14,740 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:14,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:14,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:14,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:14,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:14,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:14,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:14,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:14,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:15,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:16,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:16,202 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:16,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:16,308 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:16,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:16,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:16,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:16,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:19:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:19:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:19:16,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:19:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 34 transitions. [2023-11-19 03:19:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-11-19 03:19:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:19:16,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:16,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:16,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:19:16,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 31 states and 49 transitions. [2023-11-19 03:19:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2023-11-19 03:19:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:19:18,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:18,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:18,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:19:18,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:19:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 54 transitions. [2023-11-19 03:19:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2023-11-19 03:19:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:19:19,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:19,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:19,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:19:19,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:19:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 35 states and 56 transitions. [2023-11-19 03:19:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2023-11-19 03:19:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:19:20,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:20,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:20,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 03:19:20,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:19:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 37 states and 64 transitions. [2023-11-19 03:19:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2023-11-19 03:19:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:19:21,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:21,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:19:21,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:19:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 30 states and 39 transitions. [2023-11-19 03:19:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-11-19 03:19:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:19:22,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:22,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:22,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:19:22,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:19:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 23 states and 30 transitions. [2023-11-19 03:19:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-11-19 03:19:23,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:19:23,118 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2023-11-19 03:19:23,126 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:19:23,311 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:19:23,315 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:19:23,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:19:23 ImpRootNode [2023-11-19 03:19:23,316 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:19:23,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:19:23,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:19:23,317 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:19:23,318 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:19:13" (3/4) ... [2023-11-19 03:19:23,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:19:23,333 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 03:19:23,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:19:23,343 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-19 03:19:23,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:19:23,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:19:23,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:19:23,452 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:19:23,453 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:19:23,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:19:23,454 INFO L158 Benchmark]: Toolchain (without parser) took 11109.55ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 142.1MB in the beginning and 177.5MB in the end (delta: -35.3MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,454 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:19:23,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.45ms. Allocated memory is still 186.6MB. Free memory was 141.9MB in the beginning and 130.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.59ms. Allocated memory is still 186.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:19:23,455 INFO L158 Benchmark]: Boogie Preprocessor took 29.10ms. Allocated memory is still 186.6MB. Free memory was 129.5MB in the beginning and 127.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,456 INFO L158 Benchmark]: RCFGBuilder took 509.72ms. Allocated memory is still 186.6MB. Free memory was 127.9MB in the beginning and 110.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,456 INFO L158 Benchmark]: CodeCheck took 10062.97ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 110.5MB in the beginning and 181.6MB in the end (delta: -71.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,457 INFO L158 Benchmark]: Witness Printer took 136.26ms. Allocated memory is still 270.5MB. Free memory was 181.6MB in the beginning and 177.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:19:23,458 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 991 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 706 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 450 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1320 IncrementalHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 450 mSolverCounterUnsat, 532 mSDtfsCounter, 1320 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4010 GetRequests, 3792 SyntacticMatches, 132 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2803 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 511 NumberOfCodeBlocks, 511 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 485 ConstructedInterpolants, 1 QuantifiedInterpolants, 2156 SizeOfPredicates, 86 NumberOfNonLiveVariables, 1917 ConjunctsInSsa, 538 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 205/217 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: 14]: 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: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.45ms. Allocated memory is still 186.6MB. Free memory was 141.9MB in the beginning and 130.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.59ms. Allocated memory is still 186.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.10ms. Allocated memory is still 186.6MB. Free memory was 129.5MB in the beginning and 127.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.72ms. Allocated memory is still 186.6MB. Free memory was 127.9MB in the beginning and 110.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 10062.97ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 110.5MB in the beginning and 181.6MB in the end (delta: -71.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 136.26ms. Allocated memory is still 270.5MB. Free memory was 181.6MB in the beginning and 177.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:19:23,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abb87e4-1b14-4b67-99fc-9d0197a13c10/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE