./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c --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_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/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 c0477f4e5b27a6da26de88eabc674e3fb9f5fd06 .............................................................................................................................................................................................................................................................................. 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 23:17:02,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:17:02,163 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:17:02,171 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:17:02,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:17:02,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:17:02,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:17:02,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:17:02,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:17:02,176 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:17:02,177 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:17:02,177 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:17:02,178 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:17:02,178 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:17:02,179 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:17:02,180 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:17:02,181 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:17:02,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:17:02,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:17:02,185 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:17:02,186 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:17:02,187 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:17:02,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:17:02,188 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:17:02,189 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:17:02,189 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:17:02,190 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:17:02,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:17:02,191 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:17:02,192 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:17:02,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:17:02,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:17:02,194 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:17:02,194 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:17:02,195 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:17:02,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:17:02,195 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:17:02,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:17:02,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:17:02,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:17:02,208 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:17:02,208 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:17:02,208 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:17:02,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:17:02,209 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:17:02,209 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:17:02,209 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:17:02,209 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:17:02,210 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:17:02,210 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:17:02,211 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:17:02,211 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:17:02,211 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:17:02,211 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:17:02,211 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:17:02,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:17:02,211 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:17:02,212 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:17:02,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:17:02,212 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_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/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 -> c0477f4e5b27a6da26de88eabc674e3fb9f5fd06 [2018-10-26 23:17:02,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:17:02,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:17:02,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:17:02,253 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:17:02,254 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:17:02,254 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-10-26 23:17:02,294 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/data/265b04791/4f902eced0c443f7a73778a847ba99f8/FLAGe2ebee19a [2018-10-26 23:17:02,656 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:17:02,656 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-10-26 23:17:02,661 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/data/265b04791/4f902eced0c443f7a73778a847ba99f8/FLAGe2ebee19a [2018-10-26 23:17:02,676 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/data/265b04791/4f902eced0c443f7a73778a847ba99f8 [2018-10-26 23:17:02,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:17:02,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:17:02,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:17:02,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:17:02,684 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:17:02,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f0132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02, skipping insertion in model container [2018-10-26 23:17:02,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:17:02,712 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:17:02,828 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:17:02,831 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:17:02,844 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:17:02,860 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:17:02,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02 WrapperNode [2018-10-26 23:17:02,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:17:02,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:17:02,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:17:02,862 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:17:02,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:17:02,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:17:02,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:17:02,891 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:17:02,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... [2018-10-26 23:17:02,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:17:02,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:17:02,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:17:02,907 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:17:02,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:17:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/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 23:17:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:17:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:17:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:17:03,459 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:17:03,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:17:03 BoogieIcfgContainer [2018-10-26 23:17:03,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:17:03,460 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:17:03,460 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:17:03,470 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:17:03,470 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:17:03" (1/1) ... [2018-10-26 23:17:03,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:17:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:17:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2018-10-26 23:17:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2018-10-26 23:17:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 23:17:03,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:17:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:17:03,781 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 23:17:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:17:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-10-26 23:17:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-10-26 23:17:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 23:17:04,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:17:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:17:04,549 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2018-10-26 23:17:04,609 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 23:17:04,953 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-26 23:17:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:17:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-10-26 23:17:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-10-26 23:17:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 23:17:05,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:17:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:17:06,151 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 23:17:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:17:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 21 states and 35 transitions. [2018-10-26 23:17:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 35 transitions. [2018-10-26 23:17:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 23:17:07,118 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:17:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:17:07,336 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 23:17:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:17:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-10-26 23:17:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-10-26 23:17:07,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:17:07,799 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-10-26 23:17:07,806 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 23:17:07,908 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:17:07,910 INFO L582 CodeCheckObserver]: Invariant with dag size 34 [2018-10-26 23:17:07,913 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,914 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,914 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,918 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,918 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,918 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:17:07 ImpRootNode [2018-10-26 23:17:07,919 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:17:07,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:17:07,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:17:07,920 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:17:07,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:17:03" (3/4) ... [2018-10-26 23:17:07,924 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:17:07,933 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-10-26 23:17:07,933 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 23:17:07,933 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-26 23:17:07,974 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_77d3829a-1e6a-4412-aaa3-e72cf2bf7bd7/bin-2019/ukojak/witness.graphml [2018-10-26 23:17:07,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:17:07,975 INFO L168 Benchmark]: Toolchain (without parser) took 5295.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 961.2 MB in the beginning and 985.1 MB in the end (delta: -24.0 MB). Peak memory consumption was 206.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,976 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:17:07,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,977 INFO L168 Benchmark]: Boogie Preprocessor took 14.99 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:17:07,977 INFO L168 Benchmark]: RCFGBuilder took 552.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 947.7 MB in the beginning and 1.2 GB in the end (delta: -202.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,978 INFO L168 Benchmark]: CodeCheck took 4459.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 55.1 MB). Free memory was 1.2 GB in the beginning and 990.4 MB in the end (delta: 159.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,978 INFO L168 Benchmark]: Witness Printer took 54.75 ms. Allocated memory is still 1.3 GB. Free memory was 990.4 MB in the beginning and 985.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:17:07,981 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, 20 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 642 SolverSat, 202 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 312 SyntacticMatches, 12 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 4350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 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: 35]: 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2018-10-26 23:17:07,982 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,982 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,982 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,983 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,983 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 23:17:07,984 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((main__a == 0 && 0 < main__pos) && 4 * main__i <= 4 * main__pos + main__a + 3) && (main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__i] || main__marker == unknown-#memory_int-unknown[main__a][-(-main__a + -4 * main__pos)])) || (((main__a == 0 && main__i == 0) && main__marker == unknown-#memory_int-unknown[main__a][0]) && 0 <= main__pos) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 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 29.01 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.99 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 552.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 947.7 MB in the beginning and 1.2 GB in the end (delta: -202.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * CodeCheck took 4459.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 55.1 MB). Free memory was 1.2 GB in the beginning and 990.4 MB in the end (delta: 159.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. * Witness Printer took 54.75 ms. Allocated memory is still 1.3 GB. Free memory was 990.4 MB in the beginning and 985.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int RESULT: Ultimate proved your program to be correct! Received shutdown request...