./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/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_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/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_f2c99935-21c4-4431-8c83-acda6f976e44/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 78ef731083faa503d4cf5e0ad0f2613cb9f5144cc63c5bca18c10075cc31f97f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:55:31,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:55:31,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:55:31,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:55:31,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:55:31,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:55:31,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:55:31,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:55:31,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:55:31,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:55:31,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:55:31,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:55:31,350 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:55:31,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:55:31,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:55:31,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:55:31,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:55:31,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:55:31,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:55:31,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:55:31,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:55:31,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:55:31,355 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:55:31,355 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:55:31,355 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:55:31,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:55:31,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:31,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:55:31,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:55:31,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:55:31,359 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:55:31,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:55:31,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:55:31,360 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_f2c99935-21c4-4431-8c83-acda6f976e44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ef731083faa503d4cf5e0ad0f2613cb9f5144cc63c5bca18c10075cc31f97f [2023-11-19 02:55:31,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:55:31,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:55:31,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:55:31,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:55:31,715 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:55:31,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c [2023-11-19 02:55:34,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:55:35,087 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:55:35,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c [2023-11-19 02:55:35,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/data/b31231401/b37ff9be719f4ed7a897c3250b2d6b40/FLAGa8009bf0a [2023-11-19 02:55:35,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/data/b31231401/b37ff9be719f4ed7a897c3250b2d6b40 [2023-11-19 02:55:35,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:55:35,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:55:35,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:35,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:55:35,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:55:35,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc1ee55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35, skipping insertion in model container [2023-11-19 02:55:35,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:35,349 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_f2c99935-21c4-4431-8c83-acda6f976e44/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c[537,550] [2023-11-19 02:55:35,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:35,392 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:55:35,410 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_f2c99935-21c4-4431-8c83-acda6f976e44/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound5.c[537,550] [2023-11-19 02:55:35,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:35,451 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:55:35,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35 WrapperNode [2023-11-19 02:55:35,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:35,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:35,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:55:35,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:55:35,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,490 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-11-19 02:55:35,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:35,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:55:35,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:55:35,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:55:35,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:55:35,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:55:35,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:55:35,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:55:35,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:35,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:55:35,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:55:35,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c99935-21c4-4431-8c83-acda6f976e44/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:55:35,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:55:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:55:35,614 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:55:35,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:55:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:55:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:55:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:55:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:55:35,692 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:55:35,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:55:35,850 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:55:35,890 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:55:35,890 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:55:35,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:35 BoogieIcfgContainer [2023-11-19 02:55:35,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:55:35,896 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:55:35,896 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:55:35,907 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:55:35,907 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:35" (1/1) ... [2023-11-19 02:55:35,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:55:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 02:55:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 02:55:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:55:35,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:35,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:36,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:55:36,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:36,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 02:55:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-19 02:55:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 02:55:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:55:36,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:36,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 02:55:36,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 02:55:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2023-11-19 02:55:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2023-11-19 02:55:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:55:36,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:36,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:37,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 02:55:37,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 02:55:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2023-11-19 02:55:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2023-11-19 02:55:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:55:37,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:37,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:37,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 02:55:37,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 02:55:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2023-11-19 02:55:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2023-11-19 02:55:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:55:37,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:37,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:37,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:55:37,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 02:55:40,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 02:55:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2023-11-19 02:55:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2023-11-19 02:55:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 02:55:41,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:42,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 02:55:42,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:55:56,602 WARN L293 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 02:56:06,735 WARN L293 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 02:56:16,821 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 02:56:25,620 WARN L293 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 02:56:34,786 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 02:56:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 02:56:44,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []