./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/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_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/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 0.1.23-5842f4b [2018-11-18 11:20:11,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:20:11,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:20:11,062 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:20:11,062 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:20:11,063 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:20:11,064 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:20:11,065 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:20:11,066 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:20:11,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:20:11,067 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:20:11,067 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:20:11,068 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:20:11,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:20:11,069 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:20:11,070 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:20:11,071 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:20:11,072 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:20:11,073 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:20:11,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:20:11,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:20:11,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:20:11,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:20:11,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:20:11,078 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:20:11,079 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:20:11,079 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:20:11,080 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:20:11,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:20:11,081 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:20:11,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:20:11,082 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:20:11,082 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:20:11,082 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:20:11,083 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:20:11,083 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:20:11,084 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 11:20:11,094 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:20:11,094 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:20:11,095 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:20:11,095 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:20:11,095 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:20:11,096 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:20:11,096 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:20:11,097 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 11:20:11,097 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 11:20:11,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 11:20:11,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:20:11,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:20:11,098 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_6a332804-bd39-4f55-9659-27c81da0d310/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 [2018-11-18 11:20:11,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:20:11,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:20:11,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:20:11,134 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:20:11,134 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:20:11,135 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/../../sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 11:20:11,177 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/data/3de52f04b/08ef621a83e74233ac8108641bae2b38/FLAGc297bd5ab [2018-11-18 11:20:11,492 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:20:11,492 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/sv-benchmarks/c/array-examples/standard_sentinel_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 11:20:11,497 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/data/3de52f04b/08ef621a83e74233ac8108641bae2b38/FLAGc297bd5ab [2018-11-18 11:20:11,506 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/data/3de52f04b/08ef621a83e74233ac8108641bae2b38 [2018-11-18 11:20:11,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:20:11,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:20:11,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:11,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:20:11,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:20:11,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11, skipping insertion in model container [2018-11-18 11:20:11,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:20:11,537 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:20:11,669 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:11,672 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:20:11,689 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:20:11,706 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:20:11,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11 WrapperNode [2018-11-18 11:20:11,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:20:11,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:11,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:20:11,707 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:20:11,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:20:11,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:20:11,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:20:11,735 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:20:11,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:20:11,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:20:11,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:20:11,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:20:11,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:20:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/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 [2018-11-18 11:20:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:20:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:20:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:20:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:20:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:20:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:20:11,940 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:20:11,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:11 BoogieIcfgContainer [2018-11-18 11:20:11,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:20:11,941 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 11:20:11,941 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 11:20:11,950 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 11:20:11,950 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:11" (1/1) ... [2018-11-18 11:20:11,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:20:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2018-11-18 11:20:11,989 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2018-11-18 11:20:11,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:20:11,991 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:20:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:12,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-11-18 11:20:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-11-18 11:20:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 11:20:12,206 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:20:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-11-18 11:20:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-11-18 11:20:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:20:12,907 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:20:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 22 states and 38 transitions. [2018-11-18 11:20:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2018-11-18 11:20:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:20:13,864 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:20:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:20:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 25 states and 44 transitions. [2018-11-18 11:20:14,616 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 44 transitions. [2018-11-18 11:20:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:20:14,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:20:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:20:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:20:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:20:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2018-11-18 11:20:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2018-11-18 11:20:15,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:20:15,126 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2018-11-18 11:20:15,133 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 11:20:15,204 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 11:20:15,206 INFO L579 CodeCheckObserver]: Invariant with dag size 28 [2018-11-18 11:20:15,209 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,210 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,210 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,213 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,214 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,214 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 11:20:15 ImpRootNode [2018-11-18 11:20:15,215 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 11:20:15,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:20:15,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:20:15,216 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:20:15,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:20:11" (3/4) ... [2018-11-18 11:20:15,219 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:20:15,226 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 11:20:15,226 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:20:15,226 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:20:15,261 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6a332804-bd39-4f55-9659-27c81da0d310/bin-2019/ukojak/witness.graphml [2018-11-18 11:20:15,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:20:15,262 INFO L168 Benchmark]: Toolchain (without parser) took 3753.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 958.1 MB in the beginning and 963.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 170.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,263 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:20:15,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.11 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,264 INFO L168 Benchmark]: Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:20:15,264 INFO L168 Benchmark]: RCFGBuilder took 193.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,265 INFO L168 Benchmark]: CodeCheck took 3274.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.8 MB). Free memory was 1.1 GB in the beginning and 967.9 MB in the end (delta: 151.8 MB). Peak memory consumption was 190.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,265 INFO L168 Benchmark]: Witness Printer took 46.59 ms. Allocated memory is still 1.2 GB. Free memory was 967.9 MB in the beginning and 963.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:20:15,267 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, 3.1s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 176 SDslu, 0 SDs, 0 SdLazy, 1404 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 464 SyntacticMatches, 24 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 10220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 2/40 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 [2018-11-18 11:20:15,268 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,269 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,269 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,270 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,270 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 11:20:15,270 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((main__a == 0 && main__i <= 1) && !(4 * main__pos + main__a == 0)) && 0 <= main__pos) && main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__pos]) || (((main__i < main__pos + 1 && main__a == 0) && 1 < main__i) && main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__pos])) || (((main__a == 0 && main__i == 0) && 0 <= main__pos) && main__marker == unknown-#memory_int-unknown[main__a][main__a + 4 * main__pos]) * 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 197.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 27.11 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 193.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * CodeCheck took 3274.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.8 MB). Free memory was 1.1 GB in the beginning and 967.9 MB in the end (delta: 151.8 MB). Peak memory consumption was 190.6 MB. Max. memory is 11.5 GB. * Witness Printer took 46.59 ms. Allocated memory is still 1.2 GB. Free memory was 967.9 MB in the beginning and 963.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 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...