./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.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_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/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 950698bc17a751834ff482c414f89d89b98af415 ....................................................................................................................................................................................................................................................................................................................................................................................... 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 21:15:49,148 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:15:49,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:15:49,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:15:49,164 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:15:49,166 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:15:49,167 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:15:49,169 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:15:49,170 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:15:49,171 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:15:49,172 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:15:49,172 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:15:49,173 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:15:49,173 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:15:49,174 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:15:49,175 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:15:49,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:15:49,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:15:49,179 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:15:49,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:15:49,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:15:49,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:15:49,184 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:15:49,184 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:15:49,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:15:49,185 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:15:49,186 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:15:49,187 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:15:49,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:15:49,188 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:15:49,189 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:15:49,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:15:49,190 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:15:49,190 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:15:49,191 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:15:49,191 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:15:49,192 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 21:15:49,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:15:49,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:15:49,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:15:49,205 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:15:49,205 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:15:49,206 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:15:49,206 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:15:49,206 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:15:49,206 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:15:49,206 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:15:49,207 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:15:49,208 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:15:49,208 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:15:49,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:15:49,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:15:49,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:15:49,209 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:15:49,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:15:49,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:15:49,209 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:15:49,209 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:15:49,209 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:15:49,210 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:15:49,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:15:49,210 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_1d58f220-2909-45d5-982d-cc159cc25e1c/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 -> 950698bc17a751834ff482c414f89d89b98af415 [2018-10-26 21:15:49,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:15:49,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:15:49,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:15:49,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:15:49,267 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:15:49,268 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-10-26 21:15:49,331 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/data/fe3bdcb81/8b7664fc187f4f38a795cc448762f795/FLAG0f0eec557 [2018-10-26 21:15:49,729 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:15:49,729 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-10-26 21:15:49,734 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/data/fe3bdcb81/8b7664fc187f4f38a795cc448762f795/FLAG0f0eec557 [2018-10-26 21:15:49,747 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/data/fe3bdcb81/8b7664fc187f4f38a795cc448762f795 [2018-10-26 21:15:49,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:15:49,752 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:15:49,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:15:49,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:15:49,757 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:15:49,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee0faa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49, skipping insertion in model container [2018-10-26 21:15:49,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:15:49,791 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:15:49,916 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:15:49,919 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:15:49,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:15:49,946 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:15:49,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49 WrapperNode [2018-10-26 21:15:49,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:15:49,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:15:49,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:15:49,948 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:15:49,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... [2018-10-26 21:15:49,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:15:49,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:15:49,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:15:49,977 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:15:49,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/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 21:15:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:15:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:15:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 21:15:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:15:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 21:15:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 21:15:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 21:15:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:15:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:15:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:15:50,481 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:15:50,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:15:50 BoogieIcfgContainer [2018-10-26 21:15:50,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:15:50,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:15:50,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:15:50,485 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:15:50,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:15:49" (1/3) ... [2018-10-26 21:15:50,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f0511f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:15:50, skipping insertion in model container [2018-10-26 21:15:50,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:15:49" (2/3) ... [2018-10-26 21:15:50,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f0511f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:15:50, skipping insertion in model container [2018-10-26 21:15:50,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:15:50" (3/3) ... [2018-10-26 21:15:50,489 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-10-26 21:15:50,497 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:15:50,505 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:15:50,526 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:15:50,553 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:15:50,554 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:15:50,554 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:15:50,555 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:15:50,555 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:15:50,555 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:15:50,555 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:15:50,555 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:15:50,555 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:15:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-26 21:15:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 21:15:50,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:50,583 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:50,586 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:50,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:50,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1560473904, now seen corresponding path program 1 times [2018-10-26 21:15:50,597 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:50,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:50,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:50,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:50,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:50,703 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 21:15:50,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:50,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:15:50,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 21:15:50,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 21:15:50,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:15:50,727 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-10-26 21:15:50,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:50,750 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2018-10-26 21:15:50,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:15:50,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-26 21:15:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:50,762 INFO L225 Difference]: With dead ends: 37 [2018-10-26 21:15:50,762 INFO L226 Difference]: Without dead ends: 17 [2018-10-26 21:15:50,766 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 21:15:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-26 21:15:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-26 21:15:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-26 21:15:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-10-26 21:15:50,818 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2018-10-26 21:15:50,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:50,819 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-10-26 21:15:50,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 21:15:50,820 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-10-26 21:15:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 21:15:50,822 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:50,822 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:50,822 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:50,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:50,823 INFO L82 PathProgramCache]: Analyzing trace with hash -808267866, now seen corresponding path program 1 times [2018-10-26 21:15:50,823 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:50,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:50,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:50,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:50,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:50,975 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 21:15:50,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:50,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:15:50,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:15:50,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:15:50,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:15:50,978 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 3 states. [2018-10-26 21:15:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:51,082 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-10-26 21:15:51,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:15:51,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 21:15:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:51,084 INFO L225 Difference]: With dead ends: 29 [2018-10-26 21:15:51,084 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 21:15:51,085 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:15:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 21:15:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-10-26 21:15:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-26 21:15:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-10-26 21:15:51,090 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-10-26 21:15:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:51,090 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-10-26 21:15:51,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:15:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-10-26 21:15:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:15:51,091 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:51,092 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:51,092 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:51,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:51,092 INFO L82 PathProgramCache]: Analyzing trace with hash -109903733, now seen corresponding path program 1 times [2018-10-26 21:15:51,092 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:51,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:51,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:51,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:51,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:15:51,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:51,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:15:51,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:15:51,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:15:51,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:15:51,371 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 5 states. [2018-10-26 21:15:55,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:55,992 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2018-10-26 21:15:55,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:15:55,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-10-26 21:15:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:55,994 INFO L225 Difference]: With dead ends: 45 [2018-10-26 21:15:55,994 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 21:15:55,994 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:15:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 21:15:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-10-26 21:15:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-26 21:15:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-10-26 21:15:56,000 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2018-10-26 21:15:56,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:56,000 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-10-26 21:15:56,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:15:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-10-26 21:15:56,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 21:15:56,001 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:56,001 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:56,001 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:56,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:56,001 INFO L82 PathProgramCache]: Analyzing trace with hash 887741156, now seen corresponding path program 1 times [2018-10-26 21:15:56,002 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:56,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:56,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:56,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:56,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:56,598 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 14 [2018-10-26 21:15:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:15:56,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:56,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:15:56,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:15:56,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:15:56,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:15:56,670 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 5 states. [2018-10-26 21:16:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:01,363 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-10-26 21:16:01,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:16:01,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-10-26 21:16:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:01,364 INFO L225 Difference]: With dead ends: 44 [2018-10-26 21:16:01,364 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:16:01,365 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:16:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:16:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:16:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:16:01,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:16:01,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-26 21:16:01,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:01,366 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:16:01,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:16:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:16:01,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:16:01,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:16:01,663 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 13 [2018-10-26 21:16:02,239 WARN L179 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2018-10-26 21:16:02,242 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 21:16:02,242 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:16:02,242 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:16:02,242 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:16:02,242 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:16:02,242 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= (* 36893488151714070528 (div (+ (* 1431655765 main_~x~0) 4294967296) 4294967296)) (+ (* 12297829381041378645 main_~x~0) 12297829382473034411)) [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L421 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= (* 36893488151714070528 (div (+ (* 1431655765 main_~x~0) 4294967296) 4294967296)) (+ (* 12297829381041378645 main_~x~0) 12297829382473034411)) (and (<= 1 main_~y~0) (<= main_~y~0 1))) [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-10-26 21:16:02,243 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2018-10-26 21:16:02,243 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L16-2(lines 16 29) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 12 33) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2018-10-26 21:16:02,244 INFO L425 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2018-10-26 21:16:02,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:16:02 BoogieIcfgContainer [2018-10-26 21:16:02,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:16:02,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:16:02,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:16:02,263 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:16:02,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:15:50" (3/4) ... [2018-10-26 21:16:02,269 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:16:02,277 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:16:02,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:16:02,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 21:16:02,282 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 21:16:02,283 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 21:16:02,284 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:16:02,326 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1d58f220-2909-45d5-982d-cc159cc25e1c/bin-2019/uautomizer/witness.graphml [2018-10-26 21:16:02,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:16:02,327 INFO L168 Benchmark]: Toolchain (without parser) took 12575.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 962.5 MB in the beginning and 1.1 GB in the end (delta: -115.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:16:02,328 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:16:02,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.17 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 950.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:16:02,328 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:16:02,329 INFO L168 Benchmark]: RCFGBuilder took 504.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -200.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:16:02,329 INFO L168 Benchmark]: TraceAbstraction took 11780.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:16:02,329 INFO L168 Benchmark]: Witness Printer took 63.36 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:16:02,333 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.17 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 950.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 504.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -200.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11780.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * Witness Printer took 63.36 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 16]: Loop Invariant Derived loop invariant: 36893488151714070528 * ((1431655765 * x + 4294967296) / 4294967296) <= 12297829381041378645 * x + 12297829382473034411 || (1 <= y && y <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 11.7s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 9.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 11 SDslu, 115 SDs, 0 SdLazy, 48 SolverSat, 7 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 43 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 4029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...