./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:59:04,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:59:04,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-11 23:59:04,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:59:04,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:59:04,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:59:04,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:59:04,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:59:04,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:59:04,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:59:04,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:59:04,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:59:04,319 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:59:04,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:59:04,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:59:04,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:59:04,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:59:04,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:59:04,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:59:04,322 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:59:04,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:59:04,324 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:59:04,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:59:04,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:59:04,325 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:59:04,325 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:59:04,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:59:04,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:59:04,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:59:04,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:59:04,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:59:04,328 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:59:04,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:59:04,329 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:59:04,329 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_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 [2023-11-11 23:59:04,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:59:04,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:59:04,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:59:04,643 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:59:04,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:59:04,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2023-11-11 23:59:07,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:59:07,967 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:59:07,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2023-11-11 23:59:07,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/data/2d833795b/c97f619c0f684076853821f961883f10/FLAG204c84cfe [2023-11-11 23:59:08,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/data/2d833795b/c97f619c0f684076853821f961883f10 [2023-11-11 23:59:08,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:59:08,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:59:08,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:59:08,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:59:08,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:59:08,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb9501d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08, skipping insertion in model container [2023-11-11 23:59:08,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:59:08,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:59:08,231 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:59:08,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:59:08,259 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:59:08,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08 WrapperNode [2023-11-11 23:59:08,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:59:08,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:59:08,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:59:08,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:59:08,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,296 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2023-11-11 23:59:08,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:59:08,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:59:08,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:59:08,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:59:08,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:59:08,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:59:08,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:59:08,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:59:08,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:59:08,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:59:08,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:59:08,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:59:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:59:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:59:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:59:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:59:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-11 23:59:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-11 23:59:08,482 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:59:08,485 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:59:08,669 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:59:08,731 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:59:08,731 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:59:08,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:08 BoogieIcfgContainer [2023-11-11 23:59:08,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:59:08,736 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:59:08,737 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:59:08,748 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:59:08,749 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:08" (1/1) ... [2023-11-11 23:59:08,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:59:08,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2023-11-11 23:59:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-11 23:59:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:59:08,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 23 transitions. [2023-11-11 23:59:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-11 23:59:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:59:09,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 24 transitions. [2023-11-11 23:59:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-11 23:59:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:59:09,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:09,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 30 transitions. [2023-11-11 23:59:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-11 23:59:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:59:09,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:09,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 34 transitions. [2023-11-11 23:59:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-11 23:59:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:59:09,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:09,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:10,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 40 transitions. [2023-11-11 23:59:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-11 23:59:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:59:10,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:10,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 33 transitions. [2023-11-11 23:59:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-11 23:59:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-11 23:59:10,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:10,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 39 transitions. [2023-11-11 23:59:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-11 23:59:10,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:59:10,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:10,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:11,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:11,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2023-11-11 23:59:11,246 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-11 23:59:11,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-11 23:59:11,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:11,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 45 states and 51 transitions. [2023-11-11 23:59:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-11-11 23:59:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-11 23:59:11,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 50 states and 57 transitions. [2023-11-11 23:59:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2023-11-11 23:59:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-11 23:59:12,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:12,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 63 transitions. [2023-11-11 23:59:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-11 23:59:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-11 23:59:12,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:12,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:13,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 60 states and 69 transitions. [2023-11-11 23:59:13,472 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2023-11-11 23:59:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-11 23:59:13,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:13,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:14,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 65 states and 75 transitions. [2023-11-11 23:59:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2023-11-11 23:59:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-11 23:59:14,082 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 70 states and 81 transitions. [2023-11-11 23:59:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2023-11-11 23:59:14,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-11 23:59:14,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:15,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:15,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 75 states and 87 transitions. [2023-11-11 23:59:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2023-11-11 23:59:15,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-11 23:59:15,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 80 states and 93 transitions. [2023-11-11 23:59:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-11-11 23:59:16,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-11 23:59:16,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:16,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 85 states and 99 transitions. [2023-11-11 23:59:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2023-11-11 23:59:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-11 23:59:16,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:16,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:17,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 90 states and 105 transitions. [2023-11-11 23:59:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2023-11-11 23:59:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-11 23:59:17,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:17,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 102 transitions. [2023-11-11 23:59:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2023-11-11 23:59:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-11 23:59:18,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:18,980 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 92 states and 121 transitions. [2023-11-11 23:59:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2023-11-11 23:59:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-11 23:59:19,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:19,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 93 states and 121 transitions. [2023-11-11 23:59:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2023-11-11 23:59:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-11 23:59:19,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:19,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-11-11 23:59:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 92 states and 120 transitions. [2023-11-11 23:59:19,747 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2023-11-11 23:59:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-11 23:59:19,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:19,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 97 states and 139 transitions. [2023-11-11 23:59:20,918 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2023-11-11 23:59:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-11 23:59:20,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 102 states and 156 transitions. [2023-11-11 23:59:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 156 transitions. [2023-11-11 23:59:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-11 23:59:21,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 107 states and 172 transitions. [2023-11-11 23:59:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 172 transitions. [2023-11-11 23:59:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-11 23:59:22,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,221 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 112 states and 187 transitions. [2023-11-11 23:59:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 187 transitions. [2023-11-11 23:59:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-11 23:59:23,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 117 states and 201 transitions. [2023-11-11 23:59:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 201 transitions. [2023-11-11 23:59:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-11 23:59:25,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 122 states and 214 transitions. [2023-11-11 23:59:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 214 transitions. [2023-11-11 23:59:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-11 23:59:26,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 127 states and 226 transitions. [2023-11-11 23:59:27,336 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 226 transitions. [2023-11-11 23:59:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-11 23:59:27,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:27,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:28,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 132 states and 237 transitions. [2023-11-11 23:59:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 237 transitions. [2023-11-11 23:59:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-11 23:59:28,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 137 states and 247 transitions. [2023-11-11 23:59:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 247 transitions. [2023-11-11 23:59:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-11 23:59:29,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:29,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:31,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 142 states and 256 transitions. [2023-11-11 23:59:31,318 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 256 transitions. [2023-11-11 23:59:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-11 23:59:31,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:31,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:32,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 147 states and 264 transitions. [2023-11-11 23:59:32,689 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 264 transitions. [2023-11-11 23:59:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-11 23:59:32,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 152 states and 271 transitions. [2023-11-11 23:59:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 271 transitions. [2023-11-11 23:59:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-11 23:59:34,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:34,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 157 states and 277 transitions. [2023-11-11 23:59:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 277 transitions. [2023-11-11 23:59:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-11 23:59:35,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:35,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-11 23:59:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:37,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 158 states and 278 transitions. [2023-11-11 23:59:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 278 transitions. [2023-11-11 23:59:37,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:59:37,187 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2023-11-11 23:59:37,198 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:59:37,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:59:37 ImpRootNode [2023-11-11 23:59:37,723 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:59:37,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:59:37,724 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:59:37,724 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:59:37,725 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:08" (3/4) ... [2023-11-11 23:59:37,727 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:59:37,732 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-11 23:59:37,738 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-11 23:59:37,739 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-11 23:59:37,739 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:59:37,739 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:59:37,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:59:37,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:59:37,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:59:37,841 INFO L158 Benchmark]: Toolchain (without parser) took 29830.87ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 134.7MB in the beginning and 357.0MB in the end (delta: -222.3MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,841 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 119.5MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:59:37,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.17ms. Allocated memory is still 165.7MB. Free memory was 134.3MB in the beginning and 124.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.01ms. Allocated memory is still 165.7MB. Free memory was 124.9MB in the beginning and 123.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,843 INFO L158 Benchmark]: Boogie Preprocessor took 21.56ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 122.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,843 INFO L158 Benchmark]: RCFGBuilder took 414.84ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,844 INFO L158 Benchmark]: CodeCheck took 28987.11ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 111.7MB in the beginning and 361.2MB in the end (delta: -249.5MB). Peak memory consumption was 225.9MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,845 INFO L158 Benchmark]: Witness Printer took 116.10ms. Allocated memory is still 415.2MB. Free memory was 361.2MB in the beginning and 357.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:59:37,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 28.4s, OverallIterations: 37, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3611 SdHoareTripleChecker+Valid, 32.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3327 mSDsluCounter, 2516 SdHoareTripleChecker+Invalid, 26.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 454 mSDsCounter, 7468 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20131 IncrementalHoareTripleChecker+Invalid, 27599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7468 mSolverCounterUnsat, 2062 mSDtfsCounter, 20131 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29522 GetRequests, 28300 SyntacticMatches, 962 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28302 ImplicationChecksByTransitivity, 17.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 2669 NumberOfCodeBlocks, 2669 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2633 ConstructedInterpolants, 0 QuantifiedInterpolants, 5233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 5 PerfectInterpolantSequences, 9443/15416 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 119.5MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.17ms. Allocated memory is still 165.7MB. Free memory was 134.3MB in the beginning and 124.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.01ms. Allocated memory is still 165.7MB. Free memory was 124.9MB in the beginning and 123.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.56ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 122.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.84ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 28987.11ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 111.7MB in the beginning and 361.2MB in the end (delta: -249.5MB). Peak memory consumption was 225.9MB. Max. memory is 16.1GB. * Witness Printer took 116.10ms. Allocated memory is still 415.2MB. Free memory was 361.2MB in the beginning and 357.0MB 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! [2023-11-11 23:59:37,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beb8b2a-13fd-4344-bcd1-e91b40e1423e/bin/ukojak-verify-0OAaufAVZV/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