./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 00:10:10,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:10:10,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:10:10,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:10:10,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:10:10,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:10:10,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:10:10,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:10:10,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:10:10,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:10:10,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:10:10,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:10:10,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:10:10,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:10:10,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:10:10,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:10:10,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:10:10,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:10:10,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:10:10,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:10:10,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:10:10,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:10:10,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:10:10,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:10:10,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:10:10,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:10:10,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:10:10,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:10:10,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:10:10,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:10:10,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:10:10,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:10:10,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:10:10,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:10:10,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:10:10,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:10:10,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:10:10,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:10:10,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:10:10,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:10:10,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:10:10,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 00:10:10,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:10:10,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:10:10,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:10:10,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:10:10,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:10:10,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:10:10,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:10:10,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:10:10,293 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:10:10,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:10:10,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:10:10,293 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:10:10,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:10:10,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:10:10,294 INFO L138 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_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 [2022-12-15 00:10:10,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:10:10,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:10:10,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:10:10,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:10:10,507 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:10:10,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2022-12-15 00:10:13,052 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:10:13,210 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:10:13,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2022-12-15 00:10:13,218 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/data/3cb24ea95/a7f0479a8e974d6ba04441547e530713/FLAGa98c579c3 [2022-12-15 00:10:13,228 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/data/3cb24ea95/a7f0479a8e974d6ba04441547e530713 [2022-12-15 00:10:13,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:10:13,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:10:13,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:10:13,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:10:13,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:10:13,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bafdc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13, skipping insertion in model container [2022-12-15 00:10:13,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:10:13,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:10:13,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:10:13,487 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:10:13,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:10:13,537 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:10:13,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13 WrapperNode [2022-12-15 00:10:13,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:10:13,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:10:13,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:10:13,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:10:13,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,567 INFO L138 Inliner]: procedures = 111, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-12-15 00:10:13,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:10:13,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:10:13,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:10:13,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:10:13,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:10:13,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:10:13,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:10:13,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:10:13,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:10:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:10:13,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:10:13,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:10:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 00:10:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 00:10:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 00:10:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 00:10:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:10:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:10:13,731 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:10:13,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:10:13,838 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:10:13,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:10:13,870 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-15 00:10:13,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:10:13 BoogieIcfgContainer [2022-12-15 00:10:13,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:10:13,873 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:10:13,873 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:10:13,883 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:10:13,884 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:10:13" (1/1) ... [2022-12-15 00:10:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:10:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2022-12-15 00:10:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-15 00:10:13,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:10:13,949 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:14,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:14,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-12-15 00:10:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-12-15 00:10:14,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:10:14,637 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:14,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2022-12-15 00:10:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-12-15 00:10:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:10:15,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2022-12-15 00:10:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2022-12-15 00:10:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 00:10:16,409 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 62 transitions. [2022-12-15 00:10:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2022-12-15 00:10:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-15 00:10:17,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:10:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 44 states and 80 transitions. [2022-12-15 00:10:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2022-12-15 00:10:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 00:10:19,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 50 states and 102 transitions. [2022-12-15 00:10:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 102 transitions. [2022-12-15 00:10:22,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 00:10:22,406 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:22,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 52 states and 106 transitions. [2022-12-15 00:10:23,283 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2022-12-15 00:10:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 00:10:23,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:23,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:10:25,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 55 states and 114 transitions. [2022-12-15 00:10:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 114 transitions. [2022-12-15 00:10:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 00:10:25,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:31,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 66 states and 143 transitions. [2022-12-15 00:10:31,243 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 143 transitions. [2022-12-15 00:10:31,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:10:31,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:31,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 69 states and 151 transitions. [2022-12-15 00:10:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 151 transitions. [2022-12-15 00:10:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:10:34,557 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:34,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 76 states and 164 transitions. [2022-12-15 00:10:37,638 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 164 transitions. [2022-12-15 00:10:37,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:10:37,639 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:37,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 00:10:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 78 states and 166 transitions. [2022-12-15 00:10:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 166 transitions. [2022-12-15 00:10:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-15 00:10:38,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-15 00:10:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 82 states and 174 transitions. [2022-12-15 00:10:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2022-12-15 00:10:42,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 00:10:42,473 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 00:10:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 86 states and 187 transitions. [2022-12-15 00:10:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 187 transitions. [2022-12-15 00:10:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 00:10:45,729 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:45,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 00:10:47,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 87 states and 188 transitions. [2022-12-15 00:10:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 188 transitions. [2022-12-15 00:10:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 00:10:47,494 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 00:10:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 88 states and 190 transitions. [2022-12-15 00:10:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 190 transitions. [2022-12-15 00:10:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 00:10:49,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:49,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:10:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:10:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 91 states and 194 transitions. [2022-12-15 00:10:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 194 transitions. [2022-12-15 00:10:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 00:10:54,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:10:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:10:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:10:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:11:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 98 states and 215 transitions. [2022-12-15 00:11:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 215 transitions. [2022-12-15 00:11:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 00:11:01,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:01,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:11:04,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 102 states and 223 transitions. [2022-12-15 00:11:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 223 transitions. [2022-12-15 00:11:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 00:11:04,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:04,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:11:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 102 states and 222 transitions. [2022-12-15 00:11:07,420 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 222 transitions. [2022-12-15 00:11:07,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-15 00:11:07,420 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:07,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-15 00:11:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 103 states and 222 transitions. [2022-12-15 00:11:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 222 transitions. [2022-12-15 00:11:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-15 00:11:08,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:08,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:11:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 106 states and 226 transitions. [2022-12-15 00:11:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 226 transitions. [2022-12-15 00:11:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-15 00:11:12,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:12,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:11:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:18,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 111 states and 239 transitions. [2022-12-15 00:11:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 239 transitions. [2022-12-15 00:11:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-15 00:11:18,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:11:18,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:11:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:11:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-15 00:11:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:11:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-12-15 00:11:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-12-15 00:11:27,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 00:11:27,173 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2022-12-15 00:11:27,180 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-15 00:11:27,459 INFO L560 CodeCheckObserver]: Invariant with dag size 35 [2022-12-15 00:11:27,467 INFO L560 CodeCheckObserver]: Invariant with dag size 29 [2022-12-15 00:11:27,468 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 00:11:27,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:11:27 ImpRootNode [2022-12-15 00:11:27,468 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:11:27,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:11:27,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:11:27,469 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:11:27,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:10:13" (3/4) ... [2022-12-15 00:11:27,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 00:11:27,477 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-15 00:11:27,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-15 00:11:27,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-15 00:11:27,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 00:11:27,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:11:27,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:11:27,505 INFO L158 Benchmark]: Toolchain (without parser) took 74273.38ms. Allocated memory was 132.1MB in the beginning and 360.7MB in the end (delta: 228.6MB). Free memory was 101.1MB in the beginning and 208.4MB in the end (delta: -107.4MB). Peak memory consumption was 121.9MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,505 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory was 107.7MB in the beginning and 107.7MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:11:27,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.07ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 85.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.30ms. Allocated memory is still 132.1MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,506 INFO L158 Benchmark]: Boogie Preprocessor took 18.09ms. Allocated memory is still 132.1MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,506 INFO L158 Benchmark]: RCFGBuilder took 285.03ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 68.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,506 INFO L158 Benchmark]: CodeCheck took 73595.70ms. Allocated memory was 132.1MB in the beginning and 360.7MB in the end (delta: 228.6MB). Free memory was 68.2MB in the beginning and 210.5MB in the end (delta: -142.4MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,506 INFO L158 Benchmark]: Witness Printer took 35.31ms. Allocated memory is still 360.7MB. Free memory was 210.5MB in the beginning and 208.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:11:27,508 INFO L339 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 73.3s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2218 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2021 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 12.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11573 IncrementalHoareTripleChecker+Invalid, 13863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2290 mSolverCounterUnsat, 0 mSDtfsCounter, 11573 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4262 GetRequests, 3537 SyntacticMatches, 153 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173272 ImplicationChecksByTransitivity, 66.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 4216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 87/192 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: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: 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 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((((((0 <= 2147483647 + unknown-#memory_int-unknown[x_ref][x_ref] && !(y_ref == x_ref)) && !(z_ref == y_ref)) && !(z_ref == x_ref)) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483648) && !(unknown-#memory_int-unknown[z_ref][z_ref] + 1 <= unknown-#memory_int-unknown[x_ref][x_ref])) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) || ((((((!(y_ref == x_ref) && !(z_ref == y_ref)) && !(z_ref == x_ref)) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483648) && unknown-#memory_int-unknown[z_ref][z_ref] + 1 <= unknown-#memory_int-unknown[x_ref][x_ref]) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648) - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (((((z_ref == x_ref || !(z_ref == x_ref)) && !(y_ref == x_ref)) && !(z_ref == y_ref)) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory was 107.7MB in the beginning and 107.7MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.07ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 85.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.30ms. Allocated memory is still 132.1MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.09ms. Allocated memory is still 132.1MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.03ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 68.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 73595.70ms. Allocated memory was 132.1MB in the beginning and 360.7MB in the end (delta: 228.6MB). Free memory was 68.2MB in the beginning and 210.5MB in the end (delta: -142.4MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. * Witness Printer took 35.31ms. Allocated memory is still 360.7MB. Free memory was 210.5MB in the beginning and 208.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 00:11:27,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d742c1-8e24-4fdf-8b72-a1ef3820a5e7/bin/ukojak-rkRKPMF4O4/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