./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2797de73b923a7fbf0f091cb97be1331c2699e2c ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:35:50,351 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:35:50,352 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:35:50,361 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:35:50,361 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:35:50,362 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:35:50,363 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:35:50,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:35:50,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:35:50,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:35:50,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:35:50,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:35:50,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:35:50,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:35:50,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:35:50,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:35:50,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:35:50,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:35:50,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:35:50,383 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:35:50,384 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:35:50,385 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:35:50,387 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:35:50,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:35:50,388 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:35:50,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:35:50,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:35:50,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:35:50,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:35:50,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:35:50,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:35:50,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:35:50,397 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:35:50,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:35:50,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:35:50,398 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:35:50,398 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:35:50,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:35:50,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:35:50,422 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:35:50,422 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:35:50,423 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:35:50,423 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:35:50,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:35:50,423 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:35:50,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:35:50,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:35:50,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:35:50,425 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:35:50,425 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:35:50,425 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:35:50,425 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:35:50,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:35:50,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:35:50,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:35:50,426 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:35:50,426 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:35:50,426 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:35:50,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:35:50,426 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2797de73b923a7fbf0f091cb97be1331c2699e2c [2018-10-26 23:35:50,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:35:50,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:35:50,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:35:50,464 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:35:50,465 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:35:50,465 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-10-26 23:35:50,512 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/data/e614c6429/22f28f4e4003435e853c1c45df076126/FLAG0955e23e8 [2018-10-26 23:35:50,883 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:35:50,884 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-10-26 23:35:50,889 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/data/e614c6429/22f28f4e4003435e853c1c45df076126/FLAG0955e23e8 [2018-10-26 23:35:50,899 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/data/e614c6429/22f28f4e4003435e853c1c45df076126 [2018-10-26 23:35:50,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:35:50,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:35:50,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:35:50,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:35:50,906 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:35:50,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:35:50" (1/1) ... [2018-10-26 23:35:50,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccde937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:50, skipping insertion in model container [2018-10-26 23:35:50,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:35:50" (1/1) ... [2018-10-26 23:35:50,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:35:50,931 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:35:51,033 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:35:51,035 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:35:51,045 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:35:51,055 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:35:51,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51 WrapperNode [2018-10-26 23:35:51,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:35:51,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:35:51,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:35:51,057 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:35:51,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:35:51,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:35:51,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:35:51,083 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:35:51,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:35:51,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:35:51,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:35:51,098 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:35:51,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:35:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:35:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:35:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:35:51,496 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:35:51,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:35:51 BoogieIcfgContainer [2018-10-26 23:35:51,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:35:51,498 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:35:51,498 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:35:51,507 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:35:51,508 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:35:51" (1/1) ... [2018-10-26 23:35:51,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:35:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-10-26 23:35:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-26 23:35:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-26 23:35:51,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-26 23:35:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-26 23:35:51,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 23:35:51,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-26 23:35:51,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-26 23:35:51,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 23:35:51,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-26 23:35:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-26 23:35:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 23:35:52,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-26 23:35:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-26 23:35:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:35:52,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:52,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-10-26 23:35:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-10-26 23:35:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:35:52,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:53,172 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-26 23:35:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-10-26 23:35:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-10-26 23:35:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:35:53,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:35:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-26 23:35:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-26 23:35:53,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:35:53,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:35:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:35:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 23:35:53,840 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-10-26 23:35:54,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:35:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-10-26 23:35:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-10-26 23:35:54,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:35:54,101 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-10-26 23:35:54,109 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 23:35:54,198 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:35:54,200 INFO L582 CodeCheckObserver]: Invariant with dag size 14 [2018-10-26 23:35:54,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:35:54 ImpRootNode [2018-10-26 23:35:54,207 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:35:54,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:35:54,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:35:54,209 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:35:54,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:35:51" (3/4) ... [2018-10-26 23:35:54,213 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:35:54,223 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 23:35:54,223 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:35:54,223 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 23:35:54,259 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8d3f249f-65b2-4df3-98ac-5a057fc493c5/bin-2019/ukojak/witness.graphml [2018-10-26 23:35:54,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:35:54,261 INFO L168 Benchmark]: Toolchain (without parser) took 3358.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 954.4 MB in the beginning and 959.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,261 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:35:54,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.26 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:35:54,263 INFO L168 Benchmark]: Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,264 INFO L168 Benchmark]: RCFGBuilder took 399.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 940.9 MB in the beginning and 1.2 GB in the end (delta: -209.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,265 INFO L168 Benchmark]: CodeCheck took 2710.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 961.9 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,266 INFO L168 Benchmark]: Witness Printer took 51.00 ms. Allocated memory is still 1.2 GB. Free memory was 961.9 MB in the beginning and 959.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:35:54,269 INFO L336 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, 12 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1280 SDtfs, 510 SDslu, 760 SDs, 0 SdLazy, 1290 SolverSat, 768 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 489 SyntacticMatches, 36 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 4595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 42/112 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 4294967296 * ((x + -1) / 4294967296) + 6 || (x <= 0 && 0 <= x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.26 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 399.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 940.9 MB in the beginning and 1.2 GB in the end (delta: -209.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * CodeCheck took 2710.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 961.9 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. * Witness Printer took 51.00 ms. Allocated memory is still 1.2 GB. Free memory was 961.9 MB in the beginning and 959.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...