./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/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_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/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_fba4f818-8b0d-4812-89ef-77621541e657/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 d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:54,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:55,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:59:55,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:59:55,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:59:55,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:55,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:55,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:55,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:55,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:55,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:55,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:55,056 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:55,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:59:55,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:55,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:55,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:55,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:55,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:55,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:55,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:55,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:55,062 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:55,062 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:55,063 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:55,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:55,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:55,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:55,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:55,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:55,066 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:59:55,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:59:55,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:55,068 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_fba4f818-8b0d-4812-89ef-77621541e657/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f [2023-11-19 03:59:55,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:55,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:55,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:55,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:55,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:55,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-simple/nested_2.c [2023-11-19 03:59:58,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:58,582 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:58,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/sv-benchmarks/c/loop-simple/nested_2.c [2023-11-19 03:59:58,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/data/fb700697f/22db3024da10464a998e244558840c00/FLAGfd8bd08a2 [2023-11-19 03:59:58,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/data/fb700697f/22db3024da10464a998e244558840c00 [2023-11-19 03:59:58,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:58,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:58,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:58,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:58,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:58,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5002d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58, skipping insertion in model container [2023-11-19 03:59:58,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:58,805 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_fba4f818-8b0d-4812-89ef-77621541e657/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2023-11-19 03:59:58,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:58,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:58,830 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_fba4f818-8b0d-4812-89ef-77621541e657/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2023-11-19 03:59:58,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:58,845 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:58,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58 WrapperNode [2023-11-19 03:59:58,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:58,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:58,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:58,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:58,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,876 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-19 03:59:58,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:58,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:58,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:58,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:58,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:58,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:58,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:58,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:58,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:58" (1/1) ... [2023-11-19 03:59:58,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:58,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:58,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:58,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:59:59,030 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:59,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:59,179 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:59,204 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:59,204 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:59:59,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:59 BoogieIcfgContainer [2023-11-19 03:59:59,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:59:59,209 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:59:59,210 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:59:59,220 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:59:59,220 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:59" (1/1) ... [2023-11-19 03:59:59,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:59:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-19 03:59:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-19 03:59:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:59:59,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 03:59:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 03:59:59,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:59:59,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2023-11-19 03:59:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2023-11-19 03:59:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:59:59,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2023-11-19 03:59:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2023-11-19 03:59:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:59:59,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:59,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 04:00:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2023-11-19 04:00:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2023-11-19 04:00:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:00:00,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:00,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:00,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:00:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2023-11-19 04:00:00,412 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2023-11-19 04:00:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:00:00,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:00:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2023-11-19 04:00:00,595 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2023-11-19 04:00:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:00:00,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:00:00,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-11-19 04:00:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-11-19 04:00:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:00:00,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:00:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2023-11-19 04:00:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2023-11-19 04:00:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:00:01,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:01,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:00:01,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2023-11-19 04:00:01,527 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2023-11-19 04:00:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:00:01,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:01,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 04:00:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2023-11-19 04:00:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-11-19 04:00:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:00:01,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:01,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 65 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 04:00:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-19 04:00:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-19 04:00:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 04:00:01,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:01,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 04:00:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-11-19 04:00:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-11-19 04:00:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:00:02,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:02,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 04:00:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2023-11-19 04:00:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-11-19 04:00:02,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 04:00:02,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 04:00:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2023-11-19 04:00:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2023-11-19 04:00:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 04:00:02,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:02,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 04:00:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2023-11-19 04:00:03,191 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-19 04:00:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:00:03,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:03,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 04:00:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2023-11-19 04:00:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2023-11-19 04:00:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:00:03,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 133 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 04:00:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2023-11-19 04:00:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2023-11-19 04:00:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 04:00:03,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 150 proven. 15 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 04:00:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2023-11-19 04:00:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-11-19 04:00:03,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 04:00:03,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:03,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:04,032 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 04:00:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:04,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2023-11-19 04:00:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-11-19 04:00:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 04:00:04,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:04,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 143 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:00:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2023-11-19 04:00:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 04:00:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 04:00:04,858 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:04,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 167 proven. 6 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:00:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2023-11-19 04:00:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2023-11-19 04:00:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 04:00:05,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:05,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 191 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:00:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 56 transitions. [2023-11-19 04:00:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2023-11-19 04:00:05,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 04:00:05,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:05,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 215 proven. 15 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:00:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 43 states and 56 transitions. [2023-11-19 04:00:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2023-11-19 04:00:05,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 04:00:05,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:05,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-19 04:00:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:06,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 47 states and 62 transitions. [2023-11-19 04:00:06,519 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2023-11-19 04:00:06,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 04:00:06,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:06,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-19 04:00:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2023-11-19 04:00:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2023-11-19 04:00:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 04:00:06,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:06,816 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 218 proven. 6 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-19 04:00:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2023-11-19 04:00:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-19 04:00:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 04:00:07,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 249 proven. 10 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-19 04:00:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 50 states and 65 transitions. [2023-11-19 04:00:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2023-11-19 04:00:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 04:00:07,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:07,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 280 proven. 15 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-19 04:00:07,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 51 states and 65 transitions. [2023-11-19 04:00:07,607 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-19 04:00:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 04:00:07,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:07,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 111 proven. 3 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 04:00:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-11-19 04:00:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-11-19 04:00:07,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 04:00:07,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 146 proven. 6 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 04:00:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2023-11-19 04:00:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-19 04:00:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 04:00:08,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 181 proven. 10 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 04:00:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 54 states and 68 transitions. [2023-11-19 04:00:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-19 04:00:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 04:00:08,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 216 proven. 15 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-19 04:00:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 55 states and 68 transitions. [2023-11-19 04:00:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2023-11-19 04:00:08,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 04:00:08,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:08,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 777 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 04:00:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2023-11-19 04:00:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2023-11-19 04:00:12,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:00:12,384 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2023-11-19 04:00:12,391 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 04:00:12,593 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2023-11-19 04:00:12,603 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-19 04:00:12,604 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:00:12,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:12 ImpRootNode [2023-11-19 04:00:12,604 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:12,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:12,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:12,605 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:12,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:59" (3/4) ... [2023-11-19 04:00:12,608 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:00:12,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 04:00:12,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 04:00:12,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:00:12,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:00:12,700 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:12,700 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:00:12,700 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:12,701 INFO L158 Benchmark]: Toolchain (without parser) took 14093.02ms. Allocated memory was 134.2MB in the beginning and 251.7MB in the end (delta: 117.4MB). Free memory was 67.6MB in the beginning and 115.0MB in the end (delta: -47.3MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,702 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:12,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.13ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 67.4MB in the beginning and 141.5MB in the end (delta: -74.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.31ms. Allocated memory is still 174.1MB. Free memory was 141.5MB in the beginning and 140.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,703 INFO L158 Benchmark]: Boogie Preprocessor took 21.67ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 139.3MB in the end (delta: 177.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:12,704 INFO L158 Benchmark]: RCFGBuilder took 308.86ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 141.6MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,704 INFO L158 Benchmark]: CodeCheck took 13395.08ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 141.6MB in the beginning and 119.1MB in the end (delta: 22.5MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,705 INFO L158 Benchmark]: Witness Printer took 95.48ms. Allocated memory is still 251.7MB. Free memory was 119.1MB in the beginning and 115.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:00:12,707 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 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 34, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 560 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3479 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4834 IncrementalHoareTripleChecker+Invalid, 8313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3479 mSolverCounterUnsat, 99 mSDtfsCounter, 4834 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6913 GetRequests, 6527 SyntacticMatches, 146 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26575 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 977 NumberOfCodeBlocks, 977 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 944 ConstructedInterpolants, 0 QuantifiedInterpolants, 1514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 2 PerfectInterpolantSequences, 8876/10593 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: 26]: 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: 21]: Loop Invariant Derived loop invariant: ((a <= 4) || ((a <= 5) && (b <= 6))) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((a <= 5) || ((6 == a) && (6 == b))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.13ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 67.4MB in the beginning and 141.5MB in the end (delta: -74.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.31ms. Allocated memory is still 174.1MB. Free memory was 141.5MB in the beginning and 140.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.67ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 139.3MB in the end (delta: 177.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.86ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 141.6MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 13395.08ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 141.6MB in the beginning and 119.1MB in the end (delta: 22.5MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. * Witness Printer took 95.48ms. Allocated memory is still 251.7MB. Free memory was 119.1MB in the beginning and 115.0MB 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 04:00:12,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4f818-8b0d-4812-89ef-77621541e657/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE