./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test15_true-unreach-call_true-termination.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_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test15_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c9c5606ce46621b36dcb660538ce3b49db0b32b ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:18:01,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:18:01,924 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:18:01,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:18:01,933 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:18:01,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:18:01,934 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:18:01,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:18:01,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:18:01,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:18:01,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:18:01,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:18:01,939 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:18:01,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:18:01,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:18:01,941 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:18:01,942 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:18:01,943 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:18:01,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:18:01,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:18:01,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:18:01,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:18:01,949 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:18:01,949 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:18:01,949 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:18:01,950 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:18:01,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:18:01,951 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:18:01,951 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:18:01,952 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:18:01,952 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:18:01,953 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:18:01,953 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:18:01,953 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:18:01,954 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:18:01,955 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:18:01,955 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 04:18:01,965 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:18:01,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:18:01,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:18:01,966 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:18:01,966 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:18:01,967 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:18:01,967 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:18:01,968 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:18:01,968 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:18:01,969 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:18:01,969 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:18:01,970 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:18:01,970 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:18:01,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:18:01,970 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_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer 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 -> Automizer 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 -> 2c9c5606ce46621b36dcb660538ce3b49db0b32b [2018-11-10 04:18:01,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:18:02,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:18:02,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:18:02,008 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:18:02,008 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:18:02,008 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test15_true-unreach-call_true-termination.c [2018-11-10 04:18:02,054 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/data/045e60e86/d50ebf0abc6244d08a93be1ac497ba9e/FLAG2766ac920 [2018-11-10 04:18:02,374 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:18:02,374 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/sv-benchmarks/c/ldv-regression/test15_true-unreach-call_true-termination.c [2018-11-10 04:18:02,378 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/data/045e60e86/d50ebf0abc6244d08a93be1ac497ba9e/FLAG2766ac920 [2018-11-10 04:18:02,386 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/data/045e60e86/d50ebf0abc6244d08a93be1ac497ba9e [2018-11-10 04:18:02,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:18:02,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:18:02,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:18:02,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:18:02,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:18:02,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02, skipping insertion in model container [2018-11-10 04:18:02,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:18:02,416 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:18:02,503 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:18:02,510 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:18:02,519 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:18:02,529 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:18:02,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02 WrapperNode [2018-11-10 04:18:02,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:18:02,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:18:02,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:18:02,530 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:18:02,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... [2018-11-10 04:18:02,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:18:02,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:18:02,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:18:02,551 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:18:02,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-11-10 04:18:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:18:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:18:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-10 04:18:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:18:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 04:18:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 04:18:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:18:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:18:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 04:18:02,736 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:18:02,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:18:02 BoogieIcfgContainer [2018-11-10 04:18:02,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:18:02,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:18:02,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:18:02,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:18:02,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:18:02" (1/3) ... [2018-11-10 04:18:02,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654d2ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:18:02, skipping insertion in model container [2018-11-10 04:18:02,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:18:02" (2/3) ... [2018-11-10 04:18:02,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654d2ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:18:02, skipping insertion in model container [2018-11-10 04:18:02,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:18:02" (3/3) ... [2018-11-10 04:18:02,741 INFO L112 eAbstractionObserver]: Analyzing ICFG test15_true-unreach-call_true-termination.c [2018-11-10 04:18:02,747 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:18:02,751 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:18:02,760 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:18:02,780 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:18:02,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:18:02,781 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:18:02,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:18:02,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:18:02,781 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:18:02,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:18:02,781 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:18:02,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:18:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-10 04:18:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 04:18:02,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:18:02,799 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:18:02,801 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:18:02,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:18:02,807 INFO L82 PathProgramCache]: Analyzing trace with hash 864753426, now seen corresponding path program 1 times [2018-11-10 04:18:02,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:18:02,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:18:02,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:18:02,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:18:02,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:18:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:18:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:18:03,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:18:03,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 04:18:03,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 04:18:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 04:18:03,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 04:18:03,118 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 10 states. [2018-11-10 04:18:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:18:03,467 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2018-11-10 04:18:03,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 04:18:03,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-10 04:18:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:18:03,477 INFO L225 Difference]: With dead ends: 38 [2018-11-10 04:18:03,477 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:18:03,480 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2018-11-10 04:18:03,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:18:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:18:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:18:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:18:03,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-10 04:18:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:18:03,502 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:18:03,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 04:18:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:18:03,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:18:03,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:18:03,525 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:18:03,526 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:18:03,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:18:03,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:18:03,526 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:18:03,526 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:18:03,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:18:03,526 INFO L425 ceAbstractionStarter]: For program point L10-9(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,527 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2018-11-10 04:18:03,527 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 21) the Hoare annotation is: true [2018-11-10 04:18:03,527 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 21) no Hoare annotation was computed. [2018-11-10 04:18:03,527 INFO L421 ceAbstractionStarter]: At program point L14(lines 9 21) the Hoare annotation is: false [2018-11-10 04:18:03,527 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-10 04:18:03,527 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 21) no Hoare annotation was computed. [2018-11-10 04:18:03,527 INFO L421 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (and (not (= |main_~#a~0.base| |main_~#b~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2018-11-10 04:18:03,527 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-4(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-5(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,528 INFO L425 ceAbstractionStarter]: For program point L10-6(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point L10-7(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point L10-8(line 10) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 5 7) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L428 ceAbstractionStarter]: At program point assignENTRY(lines 5 7) the Hoare annotation is: true [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 5 7) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-10 04:18:03,529 INFO L425 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2018-11-10 04:18:03,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:18:03 BoogieIcfgContainer [2018-11-10 04:18:03,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:18:03,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:18:03,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:18:03,535 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:18:03,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:18:02" (3/4) ... [2018-11-10 04:18:03,539 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:18:03,545 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:18:03,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:18:03,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-11-10 04:18:03,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 04:18:03,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 04:18:03,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:18:03,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:18:03,582 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5c62759c-c091-41ad-8053-9c78e33a47e8/bin-2019/uautomizer/witness.graphml [2018-11-10 04:18:03,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:18:03,583 INFO L168 Benchmark]: Toolchain (without parser) took 1194.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -51.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:18:03,584 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. [2018-11-10 04:18:03,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.09 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:18:03,584 INFO L168 Benchmark]: Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:18:03,585 INFO L168 Benchmark]: RCFGBuilder took 186.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:18:03,585 INFO L168 Benchmark]: TraceAbstraction took 797.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.5 MB). Peak memory consumption was 100.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:18:03,588 INFO L168 Benchmark]: Witness Printer took 47.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:18:03,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * 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 140.09 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 186.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 797.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.5 MB). Peak memory consumption was 100.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 9]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 13 SDslu, 114 SDs, 0 SdLazy, 75 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 2760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...