./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak --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 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:16:54,510 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:16:54,512 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:16:54,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:16:54,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:16:54,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:16:54,537 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:16:54,540 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:16:54,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:16:54,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:16:54,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:16:54,548 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:16:54,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:16:54,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:16:54,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:16:54,564 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:16:54,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:16:54,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:16:54,568 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:16:54,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:16:54,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:16:54,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:16:54,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:16:54,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:16:54,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:16:54,580 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:16:54,581 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:16:54,582 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:16:54,587 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:16:54,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:16:54,588 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:16:54,589 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:16:54,589 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:16:54,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:16:54,590 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:16:54,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:16:54,595 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-10-27 05:16:54,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:16:54,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:16:54,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:16:54,615 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:16:54,616 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:16:54,616 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:16:54,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:16:54,617 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:16:54,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:16:54,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:16:54,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:16:54,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:16:54,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:16:54,618 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:16:54,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:16:54,620 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:16:54,620 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:16:54,620 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:16:54,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:16:54,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:16:54,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:16:54,621 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:16:54,621 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:16:54,621 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:16:54,622 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:16:54,622 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:16:54,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:16:54,622 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_c29efb57-4b1b-4461-a8eb-727a0fedde3b/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 ! 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 -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2018-10-27 05:16:54,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:16:54,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:16:54,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:16:54,679 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:16:54,680 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:16:54,681 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-10-27 05:16:54,749 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/data/4cf40df17/1ce906aa9eb94ee0b05fd9565fa8695f/FLAG7b4db031e [2018-10-27 05:16:55,167 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:16:55,168 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-10-27 05:16:55,178 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/data/4cf40df17/1ce906aa9eb94ee0b05fd9565fa8695f/FLAG7b4db031e [2018-10-27 05:16:55,191 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/data/4cf40df17/1ce906aa9eb94ee0b05fd9565fa8695f [2018-10-27 05:16:55,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:16:55,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:16:55,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:55,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:16:55,201 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:16:55,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10725a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55, skipping insertion in model container [2018-10-27 05:16:55,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:16:55,234 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:16:55,453 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:55,457 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:16:55,476 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:55,493 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:16:55,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55 WrapperNode [2018-10-27 05:16:55,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:55,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:55,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:16:55,497 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:16:55,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:55,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:16:55,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:16:55,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:16:55,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:16:55,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:16:55,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:16:55,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:16:55,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/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 [2018-10-27 05:16:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:16:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:16:56,123 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:16:56,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:56 BoogieIcfgContainer [2018-10-27 05:16:56,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:16:56,125 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:16:56,125 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:16:56,137 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:16:56,137 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:56" (1/1) ... [2018-10-27 05:16:56,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:16:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-10-27 05:16:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-27 05:16:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:56,197 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-10-27 05:16:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-10-27 05:16:56,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:56,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:56,991 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-10-27 05:16:57,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2018-10-27 05:16:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-10-27 05:16:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:57,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-10-27 05:16:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-10-27 05:16:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:58,076 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2018-10-27 05:16:58,605 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2018-10-27 05:16:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:58,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2018-10-27 05:16:59,114 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2018-10-27 05:16:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:59,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2018-10-27 05:16:59,211 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2018-10-27 05:16:59,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:59,211 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2018-10-27 05:16:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2018-10-27 05:16:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:59,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2018-10-27 05:16:59,477 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-10-27 05:16:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:59,477 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:16:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-10-27 05:16:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-10-27 05:16:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:59,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:16:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-10-27 05:16:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-10-27 05:16:59,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:16:59,891 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-10-27 05:16:59,904 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-10-27 05:16:59,980 INFO L582 CodeCheckObserver]: Invariant with dag size 12 [2018-10-27 05:16:59,989 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:16:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:16:59 ImpRootNode [2018-10-27 05:16:59,990 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:16:59,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:16:59,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:16:59,991 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:16:59,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:56" (3/4) ... [2018-10-27 05:16:59,995 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:17:00,008 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-27 05:17:00,009 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:17:00,009 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:17:00,053 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c29efb57-4b1b-4461-a8eb-727a0fedde3b/bin-2019/ukojak/witness.graphml [2018-10-27 05:17:00,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:17:00,054 INFO L168 Benchmark]: Toolchain (without parser) took 4859.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 963.4 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:00,055 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:00,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.72 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:00,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.53 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:00,057 INFO L168 Benchmark]: Boogie Preprocessor took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:00,057 INFO L168 Benchmark]: RCFGBuilder took 564.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:00,060 INFO L168 Benchmark]: CodeCheck took 3865.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:00,060 INFO L168 Benchmark]: Witness Printer took 62.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:00,064 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, 17 locations, 4 error locations. SAFE Result, 3.7s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1024 SDtfs, 8504 SDslu, 4608 SDs, 0 SdLazy, 30728 SolverSat, 7380 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 630 SyntacticMatches, 39 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 13/22 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 17]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && K <= 2147483647) && 0 <= K + 2147483648 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.72 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.53 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 564.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * CodeCheck took 3865.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Witness Printer took 62.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...