./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.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_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/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 cc52fae450c71cb08003ff68124573964734a280 .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:43:11,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:43:11,527 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:43:11,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:43:11,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:43:11,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:43:11,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:43:11,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:43:11,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:43:11,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:43:11,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:43:11,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:43:11,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:43:11,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:43:11,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:43:11,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:43:11,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:43:11,547 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:43:11,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:43:11,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:43:11,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:43:11,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:43:11,553 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:43:11,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:43:11,554 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:43:11,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:43:11,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:43:11,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:43:11,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:43:11,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:43:11,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:43:11,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:43:11,558 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:43:11,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:43:11,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:43:11,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:43:11,559 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:43:11,571 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:43:11,571 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:43:11,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:43:11,572 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:43:11,572 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:43:11,572 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:43:11,572 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:43:11,572 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:43:11,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:43:11,573 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:43:11,573 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:43:11,573 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:43:11,574 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:43:11,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:43:11,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:43:11,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:43:11,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:43:11,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:43:11,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:43:11,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:43:11,576 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:43:11,576 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:43:11,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:43:11,576 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_6ada3651-12bd-414c-b42e-be340677f272/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 -> cc52fae450c71cb08003ff68124573964734a280 [2018-10-26 23:43:11,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:43:11,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:43:11,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:43:11,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:43:11,623 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:43:11,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-10-26 23:43:11,670 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/data/e0318383a/ec88c8b0dd0c40d4b3cc2bb272da4639/FLAGc811c7993 [2018-10-26 23:43:12,032 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:43:12,032 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-10-26 23:43:12,037 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/data/e0318383a/ec88c8b0dd0c40d4b3cc2bb272da4639/FLAGc811c7993 [2018-10-26 23:43:12,048 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/data/e0318383a/ec88c8b0dd0c40d4b3cc2bb272da4639 [2018-10-26 23:43:12,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:43:12,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:43:12,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:43:12,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:43:12,054 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:43:12,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50161af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12, skipping insertion in model container [2018-10-26 23:43:12,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:43:12,079 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:43:12,186 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:43:12,189 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:43:12,200 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:43:12,210 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:43:12,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12 WrapperNode [2018-10-26 23:43:12,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:43:12,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:43:12,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:43:12,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:43:12,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... [2018-10-26 23:43:12,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:43:12,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:43:12,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:43:12,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:43:12,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/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 [2018-10-26 23:43:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:43:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:43:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:43:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:43:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:43:12,703 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:43:12,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:12 BoogieIcfgContainer [2018-10-26 23:43:12,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:43:12,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:43:12,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:43:12,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:43:12,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:43:12" (1/3) ... [2018-10-26 23:43:12,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52efea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:43:12, skipping insertion in model container [2018-10-26 23:43:12,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:12" (2/3) ... [2018-10-26 23:43:12,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52efea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:43:12, skipping insertion in model container [2018-10-26 23:43:12,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:12" (3/3) ... [2018-10-26 23:43:12,710 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i [2018-10-26 23:43:12,718 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:43:12,724 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:43:12,742 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:43:12,781 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:43:12,786 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:43:12,786 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:43:12,786 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:43:12,786 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:43:12,786 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:43:12,786 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:43:12,786 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:43:12,787 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:43:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 23:43:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 23:43:12,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:43:12,811 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:43:12,813 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:43:12,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:43:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1421497933, now seen corresponding path program 1 times [2018-10-26 23:43:12,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:43:12,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:43:12,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:12,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:12,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:43:12,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:43:12,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:43:12,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:43:12,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:43:12,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:43:12,954 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-10-26 23:43:12,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:43:12,968 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-10-26 23:43:12,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:43:12,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-26 23:43:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:43:12,976 INFO L225 Difference]: With dead ends: 34 [2018-10-26 23:43:12,976 INFO L226 Difference]: Without dead ends: 15 [2018-10-26 23:43:12,979 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:43:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-26 23:43:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-26 23:43:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-26 23:43:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-10-26 23:43:13,007 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-10-26 23:43:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:43:13,007 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-10-26 23:43:13,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:43:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-10-26 23:43:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:43:13,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:43:13,008 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:43:13,008 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:43:13,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:43:13,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1574385422, now seen corresponding path program 1 times [2018-10-26 23:43:13,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:43:13,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:43:13,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:13,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:13,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:13,171 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-10-26 23:43:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:43:13,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:43:13,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:43:13,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:43:13,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:43:13,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:43:13,349 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 7 states. [2018-10-26 23:43:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:43:13,581 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-10-26 23:43:13,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:43:13,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-10-26 23:43:13,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:43:13,583 INFO L225 Difference]: With dead ends: 23 [2018-10-26 23:43:13,583 INFO L226 Difference]: Without dead ends: 18 [2018-10-26 23:43:13,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:43:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-26 23:43:13,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-10-26 23:43:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-26 23:43:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-10-26 23:43:13,588 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2018-10-26 23:43:13,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:43:13,588 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-10-26 23:43:13,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:43:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-10-26 23:43:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:43:13,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:43:13,589 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:43:13,592 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:43:13,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:43:13,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1592010396, now seen corresponding path program 1 times [2018-10-26 23:43:13,592 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:43:13,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:43:13,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:13,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:13,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:13,974 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2018-10-26 23:43:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:43:13,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:43:13,992 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-26 23:43:14,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:43:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:14,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:43:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:43:14,448 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 23:43:14,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-10-26 23:43:14,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-26 23:43:14,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-26 23:43:14,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-10-26 23:43:14,450 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 14 states. [2018-10-26 23:43:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:43:14,711 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-10-26 23:43:14,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-26 23:43:14,711 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2018-10-26 23:43:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:43:14,712 INFO L225 Difference]: With dead ends: 32 [2018-10-26 23:43:14,712 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 23:43:14,713 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-10-26 23:43:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 23:43:14,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-10-26 23:43:14,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-26 23:43:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-10-26 23:43:14,718 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-10-26 23:43:14,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:43:14,718 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-10-26 23:43:14,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-26 23:43:14,718 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-10-26 23:43:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:43:14,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:43:14,719 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:43:14,719 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:43:14,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:43:14,719 INFO L82 PathProgramCache]: Analyzing trace with hash 2103962116, now seen corresponding path program 1 times [2018-10-26 23:43:14,719 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:43:14,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:43:14,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:14,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:14,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:43:14,929 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:43:14,930 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:43:14,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:43:14,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:43:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:43:15,281 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 23:43:15,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2018-10-26 23:43:15,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-26 23:43:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-26 23:43:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-10-26 23:43:15,283 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 17 states. [2018-10-26 23:43:15,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:43:15,697 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-10-26 23:43:15,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-26 23:43:15,698 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 20 [2018-10-26 23:43:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:43:15,698 INFO L225 Difference]: With dead ends: 34 [2018-10-26 23:43:15,698 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:43:15,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2018-10-26 23:43:15,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:43:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:43:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:43:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:43:15,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-10-26 23:43:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:43:15,700 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:43:15,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-26 23:43:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:43:15,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:43:15,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:43:15,775 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 23:43:15,775 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:43:15,775 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:43:15,775 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:43:15,775 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 21) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-26 23:43:15,776 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 23) no Hoare annotation was computed. [2018-10-26 23:43:15,777 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~i~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse0 (* 3 main_~n~0)))) [2018-10-26 23:43:15,777 INFO L421 ceAbstractionStarter]: At program point L14-4(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~n~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-10-26 23:43:15,777 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 23:43:15,777 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 23:43:15,777 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 23:43:15,778 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 23:43:15,778 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 23:43:15,778 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 23:43:15,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:43:15 BoogieIcfgContainer [2018-10-26 23:43:15,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:43:15,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:43:15,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:43:15,792 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:43:15,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:12" (3/4) ... [2018-10-26 23:43:15,797 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:43:15,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:43:15,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:43:15,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:43:15,807 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-26 23:43:15,808 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:43:15,808 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:43:15,808 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:43:15,847 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6ada3651-12bd-414c-b42e-be340677f272/bin-2019/uautomizer/witness.graphml [2018-10-26 23:43:15,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:43:15,848 INFO L168 Benchmark]: Toolchain (without parser) took 3797.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 960.2 MB in the beginning and 895.9 MB in the end (delta: 64.3 MB). Peak memory consumption was 211.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:15,849 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-10-26 23:43:15,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:15,854 INFO L168 Benchmark]: Boogie Preprocessor took 21.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:43:15,854 INFO L168 Benchmark]: RCFGBuilder took 470.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:15,854 INFO L168 Benchmark]: TraceAbstraction took 3087.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 229.6 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:15,855 INFO L168 Benchmark]: Witness Printer took 55.52 ms. Allocated memory is still 1.2 GB. Free memory was 899.3 MB in the beginning and 895.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:15,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 159.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 470.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3087.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 229.6 MB). Peak memory consumption was 229.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.52 ms. Allocated memory is still 1.2 GB. Free memory was 899.3 MB in the beginning and 895.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: (a + b <= 3 * i && 3 * i <= a + b) && a + b <= 3 * n - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 25 SDslu, 198 SDs, 0 SdLazy, 302 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 97 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 145 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 12196 SizeOfPredicates, 6 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...