./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/bitvector/jain_2_true-unreach-call_true-no-overflow_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/jain_2_true-unreach-call_true-no-overflow_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/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 3b70c5dcba90c3c3859d85eed011d9ca69f1abfa ......................................................................................................................................................................................................................................................................... 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 12:48:55,831 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:48:55,832 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:48:55,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:48:55,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:48:55,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:48:55,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:48:55,844 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:48:55,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:48:55,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:48:55,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:48:55,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:48:55,847 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:48:55,848 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:48:55,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:48:55,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:48:55,850 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:48:55,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:48:55,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:48:55,854 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:48:55,855 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:48:55,856 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:48:55,858 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:48:55,858 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:48:55,858 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:48:55,859 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:48:55,860 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:48:55,860 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:48:55,862 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:48:55,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:48:55,863 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:48:55,863 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:48:55,863 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:48:55,864 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:48:55,864 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:48:55,865 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:48:55,865 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 12:48:55,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:48:55,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:48:55,877 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:48:55,878 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:48:55,878 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:48:55,878 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:48:55,878 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:48:55,878 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:48:55,879 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:48:55,880 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:48:55,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:48:55,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:48:55,882 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:48:55,882 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:48:55,882 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:48:55,882 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:48:55,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:48:55,883 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_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/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 -> 3b70c5dcba90c3c3859d85eed011d9ca69f1abfa [2018-11-10 12:48:55,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:48:55,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:48:55,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:48:55,918 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:48:55,918 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:48:55,918 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/jain_2_true-unreach-call_true-no-overflow_false-termination.i [2018-11-10 12:48:55,956 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/data/c78e085d6/090a52221e534f17ace41277c995f0fa/FLAG6c737658b [2018-11-10 12:48:56,360 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:48:56,361 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/sv-benchmarks/c/bitvector/jain_2_true-unreach-call_true-no-overflow_false-termination.i [2018-11-10 12:48:56,365 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/data/c78e085d6/090a52221e534f17ace41277c995f0fa/FLAG6c737658b [2018-11-10 12:48:56,376 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/data/c78e085d6/090a52221e534f17ace41277c995f0fa [2018-11-10 12:48:56,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:48:56,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:48:56,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:48:56,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:48:56,384 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:48:56,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56, skipping insertion in model container [2018-11-10 12:48:56,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:48:56,411 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:48:56,513 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:48:56,515 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:48:56,524 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:48:56,533 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:48:56,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56 WrapperNode [2018-11-10 12:48:56,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:48:56,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:48:56,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:48:56,534 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:48:56,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... [2018-11-10 12:48:56,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:48:56,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:48:56,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:48:56,553 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:48:56,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/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 12:48:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:48:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:48:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:48:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:48:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:48:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-10 12:48:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:48:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:48:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:48:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:48:56,748 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:48:56,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:56 BoogieIcfgContainer [2018-11-10 12:48:56,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:48:56,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:48:56,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:48:56,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:48:56,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:48:56" (1/3) ... [2018-11-10 12:48:56,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb8d2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:48:56, skipping insertion in model container [2018-11-10 12:48:56,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:56" (2/3) ... [2018-11-10 12:48:56,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb8d2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:48:56, skipping insertion in model container [2018-11-10 12:48:56,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:56" (3/3) ... [2018-11-10 12:48:56,756 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_2_true-unreach-call_true-no-overflow_false-termination.i [2018-11-10 12:48:56,765 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:48:56,771 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:48:56,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:48:56,803 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:48:56,803 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:48:56,804 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:48:56,804 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:48:56,804 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:48:56,804 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:48:56,804 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:48:56,804 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:48:56,804 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:48:56,816 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-10 12:48:56,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:48:56,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:48:56,820 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:48:56,822 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:48:56,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:48:56,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1863838843, now seen corresponding path program 1 times [2018-11-10 12:48:56,829 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:48:56,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:48:56,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:48:56,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:48:56,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:48:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:48:56,999 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 12:48:57,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:48:57,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 12:48:57,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 12:48:57,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 12:48:57,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 12:48:57,018 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-10 12:48:57,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:48:57,083 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2018-11-10 12:48:57,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 12:48:57,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-10 12:48:57,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:48:57,089 INFO L225 Difference]: With dead ends: 28 [2018-11-10 12:48:57,090 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:48:57,092 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:48:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:48:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:48:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:48:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:48:57,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-10 12:48:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:48:57,108 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:48:57,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 12:48:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:48:57,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:48:57,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:48:57,151 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 12:48:57,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:48:57,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:48:57,152 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:48:57,152 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:48:57,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:48:57,152 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-11-10 12:48:57,152 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-11-10 12:48:57,153 INFO L421 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~x~0 main_~y~0 2) (* 2 (div (+ main_~x~0 (+ main_~y~0 2)) 2))) [2018-11-10 12:48:57,153 INFO L421 ceAbstractionStarter]: At program point L23-1(lines 17 24) the Hoare annotation is: (<= (+ main_~x~0 main_~y~0 2) (* 2 (div (+ main_~x~0 (+ main_~y~0 2)) 2))) [2018-11-10 12:48:57,153 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 24) no Hoare annotation was computed. [2018-11-10 12:48:57,153 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 24) no Hoare annotation was computed. [2018-11-10 12:48:57,153 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-11-10 12:48:57,153 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-10 12:48:57,154 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-11-10 12:48:57,154 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-10 12:48:57,154 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-10 12:48:57,154 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-10 12:48:57,154 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-11-10 12:48:57,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:48:57 BoogieIcfgContainer [2018-11-10 12:48:57,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:48:57,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:48:57,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:48:57,168 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:48:57,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:56" (3/4) ... [2018-11-10 12:48:57,171 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:48:57,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:48:57,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:48:57,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 12:48:57,180 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 12:48:57,180 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 12:48:57,180 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:48:57,208 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_27b8c8ed-ee2a-4252-9d3c-007cfd7d1809/bin-2019/uautomizer/witness.graphml [2018-11-10 12:48:57,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:48:57,208 INFO L168 Benchmark]: Toolchain (without parser) took 829.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -127.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:48:57,209 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:48:57,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:48:57,210 INFO L168 Benchmark]: Boogie Preprocessor took 19.46 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:48:57,210 INFO L168 Benchmark]: RCFGBuilder took 195.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:48:57,210 INFO L168 Benchmark]: TraceAbstraction took 416.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:48:57,210 INFO L168 Benchmark]: Witness Printer took 40.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:48:57,212 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.46 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 416.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 40.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 17]: Loop Invariant Derived loop invariant: x + y + 2 <= 2 * ((x + (y + 2)) / 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 7 SDslu, 26 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 8 PreInvPairs, 11 NumberOfFragments, 33 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 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...