./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/trex03_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/trex03_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/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 8b8fb82fd886dd019eb017cf0c82ba4eddc31046 .................................................................................................................................................................................................................................................................................................................... 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 22:13:54,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:13:54,355 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:13:54,367 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:13:54,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:13:54,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:13:54,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:13:54,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:13:54,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:13:54,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:13:54,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:13:54,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:13:54,377 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:13:54,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:13:54,379 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:13:54,380 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:13:54,381 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:13:54,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:13:54,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:13:54,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:13:54,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:13:54,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:13:54,391 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:13:54,391 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:13:54,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:13:54,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:13:54,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:13:54,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:13:54,396 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:13:54,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:13:54,398 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:13:54,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:13:54,399 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:13:54,399 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:13:54,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:13:54,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:13:54,402 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 22:13:54,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:13:54,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:13:54,417 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:13:54,417 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:13:54,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:13:54,418 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:13:54,418 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:13:54,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:13:54,418 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:13:54,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:13:54,419 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:13:54,420 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:13:54,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:13:54,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:13:54,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:13:54,425 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:13:54,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:13:54,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:13:54,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:13:54,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:13:54,426 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:13:54,426 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:13:54,426 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:13:54,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:13:54,426 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_89ffb782-d6eb-426c-bb9f-517aa7eab807/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 -> 8b8fb82fd886dd019eb017cf0c82ba4eddc31046 [2018-10-26 22:13:54,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:13:54,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:13:54,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:13:54,500 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:13:54,501 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:13:54,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex03_true-unreach-call_true-termination.i [2018-10-26 22:13:54,566 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/data/af698dfe4/f55df96486534d38a0153e81694a50b6/FLAG49d6813bd [2018-10-26 22:13:54,948 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:13:54,949 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/sv-benchmarks/c/loops/trex03_true-unreach-call_true-termination.i [2018-10-26 22:13:54,956 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/data/af698dfe4/f55df96486534d38a0153e81694a50b6/FLAG49d6813bd [2018-10-26 22:13:54,969 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/data/af698dfe4/f55df96486534d38a0153e81694a50b6 [2018-10-26 22:13:54,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:13:54,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:13:54,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:13:54,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:13:54,979 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:13:54,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:13:54" (1/1) ... [2018-10-26 22:13:54,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372f9469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:54, skipping insertion in model container [2018-10-26 22:13:54,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:13:54" (1/1) ... [2018-10-26 22:13:54,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:13:55,015 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:13:55,160 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:13:55,167 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:13:55,183 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:13:55,197 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:13:55,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55 WrapperNode [2018-10-26 22:13:55,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:13:55,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:13:55,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:13:55,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:13:55,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... [2018-10-26 22:13:55,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:13:55,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:13:55,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:13:55,232 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:13:55,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/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 22:13:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:13:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:13:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:13:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:13:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:13:55,812 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:13:55,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:13:55 BoogieIcfgContainer [2018-10-26 22:13:55,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:13:55,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:13:55,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:13:55,818 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:13:55,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:13:54" (1/3) ... [2018-10-26 22:13:55,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:13:55, skipping insertion in model container [2018-10-26 22:13:55,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:13:55" (2/3) ... [2018-10-26 22:13:55,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:13:55, skipping insertion in model container [2018-10-26 22:13:55,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:13:55" (3/3) ... [2018-10-26 22:13:55,825 INFO L112 eAbstractionObserver]: Analyzing ICFG trex03_true-unreach-call_true-termination.i [2018-10-26 22:13:55,836 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:13:55,846 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:13:55,865 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:13:55,899 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:13:55,900 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:13:55,900 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:13:55,900 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:13:55,901 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:13:55,901 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:13:55,901 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:13:55,902 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:13:55,902 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:13:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 22:13:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 22:13:55,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:55,933 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:13:55,936 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:55,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:55,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1575744449, now seen corresponding path program 1 times [2018-10-26 22:13:55,945 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:55,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:56,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:56,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:56,067 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 22:13:56,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:13:56,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:13:56,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:13:56,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:13:56,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:13:56,094 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-10-26 22:13:56,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:56,116 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-10-26 22:13:56,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:13:56,118 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-26 22:13:56,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:56,128 INFO L225 Difference]: With dead ends: 34 [2018-10-26 22:13:56,128 INFO L226 Difference]: Without dead ends: 15 [2018-10-26 22:13:56,132 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 22:13:56,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-26 22:13:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-26 22:13:56,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-26 22:13:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-10-26 22:13:56,176 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-10-26 22:13:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:56,177 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-10-26 22:13:56,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:13:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-10-26 22:13:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 22:13:56,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:56,180 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:13:56,180 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:56,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:56,181 INFO L82 PathProgramCache]: Analyzing trace with hash 998051845, now seen corresponding path program 1 times [2018-10-26 22:13:56,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:56,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:56,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:56,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:56,394 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-26 22:13:56,447 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 22:13:56,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:13:56,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:13:56,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:13:56,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:13:56,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:13:56,450 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2018-10-26 22:13:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:56,588 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-10-26 22:13:56,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 22:13:56,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-26 22:13:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:56,590 INFO L225 Difference]: With dead ends: 15 [2018-10-26 22:13:56,590 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:13:56,591 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:13:56,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:13:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:13:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:13:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:13:56,592 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-26 22:13:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:56,592 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:13:56,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:13:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:13:56,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:13:56,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:13:56,708 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 22:13:56,708 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:13:56,708 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:13:56,708 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:13:56,708 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 22) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2018-10-26 22:13:56,709 INFO L428 ceAbstractionStarter]: At program point L15-3(lines 15 22) the Hoare annotation is: true [2018-10-26 22:13:56,710 INFO L421 ceAbstractionStarter]: At program point L15-4(lines 15 22) the Hoare annotation is: (or (= main_~x2~0 (* 4294967296 (div main_~x2~0 4294967296))) (= main_~x3~0 (* 4294967296 (div main_~x3~0 4294967296))) (= main_~x1~0 (* 4294967296 (div main_~x1~0 4294967296)))) [2018-10-26 22:13:56,710 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2018-10-26 22:13:56,710 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2018-10-26 22:13:56,710 INFO L425 ceAbstractionStarter]: For program point L18-2(lines 17 19) no Hoare annotation was computed. [2018-10-26 22:13:56,710 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-10-26 22:13:56,710 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-10-26 22:13:56,710 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-26 22:13:56,711 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-10-26 22:13:56,711 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-26 22:13:56,711 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-26 22:13:56,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:13:56 BoogieIcfgContainer [2018-10-26 22:13:56,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:13:56,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:13:56,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:13:56,718 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:13:56,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:13:55" (3/4) ... [2018-10-26 22:13:56,723 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:13:56,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:13:56,735 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:13:56,735 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 22:13:56,740 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-26 22:13:56,740 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 22:13:56,741 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 22:13:56,785 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89ffb782-d6eb-426c-bb9f-517aa7eab807/bin-2019/uautomizer/witness.graphml [2018-10-26 22:13:56,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:13:56,786 INFO L168 Benchmark]: Toolchain (without parser) took 1813.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 963.4 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-10-26 22:13:56,787 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:13:56,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.84 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:13:56,789 INFO L168 Benchmark]: Boogie Preprocessor took 32.28 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:13:56,789 INFO L168 Benchmark]: RCFGBuilder took 582.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:13:56,790 INFO L168 Benchmark]: TraceAbstraction took 902.81 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:13:56,790 INFO L168 Benchmark]: Witness Printer took 67.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:13:56,794 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.84 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.28 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 582.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 902.81 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 1 SDslu, 35 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 28 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...