./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.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_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/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_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/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_15b07d91-2a57-4235-a724-4d28bd34dcc2/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 3969c56ba3ed63965cbeb782ee88e7216b6985c490408396983bf5f457467675 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:28:27,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:28:27,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:28:27,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:28:27,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:28:27,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:28:27,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:28:27,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:28:27,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:28:27,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:28:27,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:28:27,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:28:27,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:28:27,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:28:27,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:28:27,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:28:27,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:28:27,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:28:27,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:28:27,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:28:27,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:28:27,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:28:27,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:28:27,946 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:28:27,946 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:28:27,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:28:27,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:28:27,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:28:27,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:28:27,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:28:27,951 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:28:27,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:28:27,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:28:27,952 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_15b07d91-2a57-4235-a724-4d28bd34dcc2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3969c56ba3ed63965cbeb782ee88e7216b6985c490408396983bf5f457467675 [2023-11-19 03:28:28,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:28:28,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:28:28,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:28:28,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:28:28,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:28:28,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.c [2023-11-19 03:28:31,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:28:31,848 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:28:31,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.c [2023-11-19 03:28:31,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/data/a8cb18bfa/1b4bc6d7e76b4a43a6fa7113dea66d6a/FLAGd9cafe42a [2023-11-19 03:28:31,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/data/a8cb18bfa/1b4bc6d7e76b4a43a6fa7113dea66d6a [2023-11-19 03:28:31,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:28:31,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:28:31,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:31,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:28:31,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:28:31,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:31" (1/1) ... [2023-11-19 03:28:31,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319f040f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:31, skipping insertion in model container [2023-11-19 03:28:31,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:31" (1/1) ... [2023-11-19 03:28:31,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:28:32,099 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_15b07d91-2a57-4235-a724-4d28bd34dcc2/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.c[537,550] [2023-11-19 03:28:32,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:32,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:28:32,144 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_15b07d91-2a57-4235-a724-4d28bd34dcc2/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound2.c[537,550] [2023-11-19 03:28:32,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:32,168 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:28:32,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32 WrapperNode [2023-11-19 03:28:32,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:32,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:32,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:28:32,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:28:32,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,205 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-11-19 03:28:32,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:32,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:28:32,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:28:32,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:28:32,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:28:32,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:28:32,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:28:32,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:28:32,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:28:32,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:28:32,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:28:32,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15b07d91-2a57-4235-a724-4d28bd34dcc2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:28:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:28:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:28:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:28:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:28:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:28:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:28:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:28:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:28:32,386 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:28:32,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:28:32,575 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:28:32,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:28:32,630 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:28:32,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:32 BoogieIcfgContainer [2023-11-19 03:28:32,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:28:32,635 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:28:32,635 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:28:32,643 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:28:32,643 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:32" (1/1) ... [2023-11-19 03:28:32,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:28:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:28:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:28:32,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:28:32,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:32,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:33,218 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 03:28:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2023-11-19 03:28:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2023-11-19 03:28:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:28:33,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:33,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:28:34,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2023-11-19 03:28:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2023-11-19 03:28:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:28:34,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:34,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:34,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:28:34,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:28:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:28:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:28:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:28:35,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:35,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:28:35,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:28:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:28:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:28:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:28:36,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:36,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:36,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:28:36,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:28:36,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:28:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:28:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:28:36,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:36,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:28:36,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:28:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:28:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:28:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:28:36,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:36,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:28:36,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:36,594 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 03:28:37,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2023-11-19 03:28:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2023-11-19 03:28:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:28:37,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:37,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:37,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:28:37,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:28:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 52 states and 97 transitions. [2023-11-19 03:28:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2023-11-19 03:28:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:28:39,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:39,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:39,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:28:39,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:28:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 52 states and 97 transitions. [2023-11-19 03:28:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2023-11-19 03:28:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:28:40,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:40,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:28:40,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:28:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 54 states and 101 transitions. [2023-11-19 03:28:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2023-11-19 03:28:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:28:41,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:41,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:41,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:28:41,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 03:28:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 59 states and 113 transitions. [2023-11-19 03:28:43,191 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 113 transitions. [2023-11-19 03:28:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:28:43,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:43,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:43,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:28:43,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:28:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:29:26,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 03:29:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 63 states and 125 transitions. [2023-11-19 03:29:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 125 transitions. [2023-11-19 03:29:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:29:26,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:26,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:26,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:29:26,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:29:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:29:27,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 66 states and 130 transitions. [2023-11-19 03:29:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 130 transitions. [2023-11-19 03:29:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:29:27,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:27,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:27,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:29:27,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:29:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.