java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 13:04:38,999 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:04:39,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:04:39,012 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:04:39,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:04:39,014 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:04:39,015 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:04:39,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:04:39,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:04:39,020 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:04:39,020 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:04:39,021 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:04:39,022 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:04:39,023 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:04:39,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:04:39,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:04:39,026 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:04:39,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:04:39,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:04:39,031 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:04:39,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:04:39,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:04:39,036 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:04:39,037 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:04:39,037 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:04:39,038 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:04:39,039 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:04:39,040 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:04:39,041 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:04:39,042 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:04:39,042 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:04:39,043 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:04:39,043 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:04:39,043 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:04:39,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:04:39,047 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:04:39,047 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 13:04:39,080 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:04:39,080 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:04:39,081 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:04:39,081 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:04:39,082 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:04:39,082 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:04:39,082 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:04:39,083 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:04:39,083 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:04:39,083 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:04:39,083 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:04:39,083 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:04:39,084 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:04:39,084 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:04:39,084 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:04:39,084 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:04:39,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:04:39,085 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:04:39,085 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:04:39,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:04:39,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:04:39,085 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:04:39,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:04:39,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:04:39,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:04:39,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:04:39,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:04:39,087 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:04:39,087 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:04:39,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:04:39,087 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:04:39,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:04:39,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:04:39,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:04:39,172 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:04:39,172 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:04:39,173 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-11-23 13:04:39,238 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d55ce5/9a035422a70c4d749cb6860e5e78e32e/FLAGee0d2ff2e [2018-11-23 13:04:39,723 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:04:39,724 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-11-23 13:04:39,730 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d55ce5/9a035422a70c4d749cb6860e5e78e32e/FLAGee0d2ff2e [2018-11-23 13:04:40,064 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d55ce5/9a035422a70c4d749cb6860e5e78e32e [2018-11-23 13:04:40,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:04:40,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:04:40,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:04:40,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:04:40,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:04:40,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a187f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40, skipping insertion in model container [2018-11-23 13:04:40,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:04:40,127 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:04:40,349 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:04:40,355 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:04:40,390 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:04:40,405 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:04:40,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40 WrapperNode [2018-11-23 13:04:40,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:04:40,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:04:40,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:04:40,407 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:04:40,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:04:40,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:04:40,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:04:40,429 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:04:40,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... [2018-11-23 13:04:40,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:04:40,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:04:40,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:04:40,458 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:04:40,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:04:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:04:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:04:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-23 13:04:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-23 13:04:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:04:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:04:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:04:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:04:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:04:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:04:41,209 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:04:41,210 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:04:41,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:41 BoogieIcfgContainer [2018-11-23 13:04:41,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:04:41,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:04:41,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:04:41,222 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:04:41,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:04:40" (1/3) ... [2018-11-23 13:04:41,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b675b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:04:41, skipping insertion in model container [2018-11-23 13:04:41,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:40" (2/3) ... [2018-11-23 13:04:41,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b675b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:04:41, skipping insertion in model container [2018-11-23 13:04:41,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:41" (3/3) ... [2018-11-23 13:04:41,226 INFO L112 eAbstractionObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-11-23 13:04:41,237 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:04:41,245 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:04:41,264 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:04:41,301 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:04:41,302 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:04:41,302 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:04:41,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:04:41,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:04:41,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:04:41,303 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:04:41,303 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:04:41,303 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:04:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-23 13:04:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:04:41,330 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:04:41,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:04:41,334 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:04:41,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:04:41,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1886719170, now seen corresponding path program 1 times [2018-11-23 13:04:41,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:04:41,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:04:41,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:04:41,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:04:41,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:04:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:04:41,511 INFO L256 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {34#true} is VALID [2018-11-23 13:04:41,515 INFO L273 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2018-11-23 13:04:41,517 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #82#return; {34#true} is VALID [2018-11-23 13:04:41,518 INFO L256 TraceCheckUtils]: 3: Hoare triple {34#true} call #t~ret6 := main(); {34#true} is VALID [2018-11-23 13:04:41,518 INFO L273 TraceCheckUtils]: 4: Hoare triple {34#true} ~c~1 := #t~nondet5;havoc #t~nondet5; {34#true} is VALID [2018-11-23 13:04:41,518 INFO L273 TraceCheckUtils]: 5: Hoare triple {34#true} assume 0 != ~c~1 % 256; {34#true} is VALID [2018-11-23 13:04:41,519 INFO L256 TraceCheckUtils]: 6: Hoare triple {34#true} call f(1); {34#true} is VALID [2018-11-23 13:04:41,519 INFO L273 TraceCheckUtils]: 7: Hoare triple {34#true} ~d := #in~d;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~k~0 := #t~nondet2;havoc #t~nondet2;~z~0 := 1; {34#true} is VALID [2018-11-23 13:04:41,519 INFO L273 TraceCheckUtils]: 8: Hoare triple {34#true} assume !!(~k~0 <= 1073741823); {34#true} is VALID [2018-11-23 13:04:41,520 INFO L273 TraceCheckUtils]: 9: Hoare triple {34#true} assume !true; {35#false} is VALID [2018-11-23 13:04:41,521 INFO L256 TraceCheckUtils]: 10: Hoare triple {35#false} call __VERIFIER_assert((if ~z~0 >= 1 then 1 else 0)); {35#false} is VALID [2018-11-23 13:04:41,522 INFO L273 TraceCheckUtils]: 11: Hoare triple {35#false} ~cond := #in~cond; {35#false} is VALID [2018-11-23 13:04:41,522 INFO L273 TraceCheckUtils]: 12: Hoare triple {35#false} assume 0 == ~cond; {35#false} is VALID [2018-11-23 13:04:41,523 INFO L273 TraceCheckUtils]: 13: Hoare triple {35#false} assume !false; {35#false} is VALID [2018-11-23 13:04:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:04:41,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:04:41,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:04:41,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 13:04:41,537 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:04:41,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 13:04:41,640 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:04:41,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:04:41,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:04:41,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:04:41,653 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-11-23 13:04:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:41,990 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2018-11-23 13:04:41,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:04:41,991 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 13:04:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:04:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:04:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 70 transitions. [2018-11-23 13:04:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:04:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 70 transitions. [2018-11-23 13:04:42,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 70 transitions. [2018-11-23 13:04:42,436 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:04:42,447 INFO L225 Difference]: With dead ends: 51 [2018-11-23 13:04:42,447 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 13:04:42,451 INFO L631 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 [2018-11-23 13:04:42,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 13:04:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-23 13:04:42,493 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:04:42,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2018-11-23 13:04:42,494 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-23 13:04:42,494 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-23 13:04:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:42,497 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-23 13:04:42,498 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-23 13:04:42,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:04:42,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:04:42,499 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-23 13:04:42,499 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-23 13:04:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:42,502 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-23 13:04:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-23 13:04:42,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:04:42,503 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:04:42,503 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:04:42,504 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:04:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 13:04:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-23 13:04:42,508 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2018-11-23 13:04:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:04:42,508 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-23 13:04:42,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:04:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-23 13:04:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:04:42,509 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:04:42,510 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:04:42,510 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:04:42,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:04:42,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1883025086, now seen corresponding path program 1 times [2018-11-23 13:04:42,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:04:42,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:04:42,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:04:42,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:04:42,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:04:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:04:42,663 INFO L256 TraceCheckUtils]: 0: Hoare triple {161#true} call ULTIMATE.init(); {161#true} is VALID [2018-11-23 13:04:42,663 INFO L273 TraceCheckUtils]: 1: Hoare triple {161#true} assume true; {161#true} is VALID [2018-11-23 13:04:42,664 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {161#true} {161#true} #82#return; {161#true} is VALID [2018-11-23 13:04:42,664 INFO L256 TraceCheckUtils]: 3: Hoare triple {161#true} call #t~ret6 := main(); {161#true} is VALID [2018-11-23 13:04:42,664 INFO L273 TraceCheckUtils]: 4: Hoare triple {161#true} ~c~1 := #t~nondet5;havoc #t~nondet5; {161#true} is VALID [2018-11-23 13:04:42,664 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#true} assume 0 != ~c~1 % 256; {161#true} is VALID [2018-11-23 13:04:42,665 INFO L256 TraceCheckUtils]: 6: Hoare triple {161#true} call f(1); {161#true} is VALID [2018-11-23 13:04:42,668 INFO L273 TraceCheckUtils]: 7: Hoare triple {161#true} ~d := #in~d;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~k~0 := #t~nondet2;havoc #t~nondet2;~z~0 := 1; {163#(<= 1 f_~z~0)} is VALID [2018-11-23 13:04:42,669 INFO L273 TraceCheckUtils]: 8: Hoare triple {163#(<= 1 f_~z~0)} assume !!(~k~0 <= 1073741823); {163#(<= 1 f_~z~0)} is VALID [2018-11-23 13:04:42,670 INFO L273 TraceCheckUtils]: 9: Hoare triple {163#(<= 1 f_~z~0)} assume !(~z~0 < ~k~0); {163#(<= 1 f_~z~0)} is VALID [2018-11-23 13:04:42,679 INFO L256 TraceCheckUtils]: 10: Hoare triple {163#(<= 1 f_~z~0)} call __VERIFIER_assert((if ~z~0 >= 1 then 1 else 0)); {164#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2018-11-23 13:04:42,681 INFO L273 TraceCheckUtils]: 11: Hoare triple {164#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {165#(= __VERIFIER_assert_~cond 1)} is VALID [2018-11-23 13:04:42,682 INFO L273 TraceCheckUtils]: 12: Hoare triple {165#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {162#false} is VALID [2018-11-23 13:04:42,682 INFO L273 TraceCheckUtils]: 13: Hoare triple {162#false} assume !false; {162#false} is VALID [2018-11-23 13:04:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:04:42,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:04:42,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:04:42,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 13:04:42,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:04:42,687 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 13:04:42,742 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:04:42,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:04:42,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:04:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:04:42,743 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2018-11-23 13:04:43,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:43,262 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-23 13:04:43,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:04:43,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 13:04:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:04:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 13:04:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-11-23 13:04:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 13:04:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-11-23 13:04:43,267 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 17 transitions. [2018-11-23 13:04:43,304 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:04:43,304 INFO L225 Difference]: With dead ends: 16 [2018-11-23 13:04:43,305 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:04:43,306 INFO L631 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 [2018-11-23 13:04:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:04:43,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:04:43,307 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:04:43,307 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 13:04:43,307 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 13:04:43,307 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 13:04:43,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:43,308 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 13:04:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:04:43,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:04:43,308 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:04:43,308 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 13:04:43,308 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 13:04:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:04:43,309 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 13:04:43,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:04:43,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:04:43,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:04:43,309 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:04:43,309 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:04:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:04:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:04:43,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 13:04:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:04:43,310 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:04:43,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:04:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:04:43,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:04:43,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:04:43,399 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 13:04:43,399 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L448 ceAbstractionStarter]: For program point L17(lines 11 33) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 33) no Hoare annotation was computed. [2018-11-23 13:04:43,400 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 33) the Hoare annotation is: true [2018-11-23 13:04:43,401 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 31) no Hoare annotation was computed. [2018-11-23 13:04:43,401 INFO L451 ceAbstractionStarter]: At program point L24-2(lines 22 32) the Hoare annotation is: true [2018-11-23 13:04:43,401 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 13:04:43,401 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 11 33) no Hoare annotation was computed. [2018-11-23 13:04:43,401 INFO L444 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: (<= 1 f_~z~0) [2018-11-23 13:04:43,401 INFO L444 ceAbstractionStarter]: At program point L16-3(line 16) the Hoare annotation is: (<= 1 f_~z~0) [2018-11-23 13:04:43,402 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:04:43,402 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:04:43,402 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:04:43,402 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:04:43,402 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 34 42) the Hoare annotation is: true [2018-11-23 13:04:43,403 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 34 42) no Hoare annotation was computed. [2018-11-23 13:04:43,403 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 34 42) no Hoare annotation was computed. [2018-11-23 13:04:43,403 INFO L451 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: true [2018-11-23 13:04:43,403 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 36 40) no Hoare annotation was computed. [2018-11-23 13:04:43,403 INFO L451 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: true [2018-11-23 13:04:43,403 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-23 13:04:43,404 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 13:04:43,404 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 13:04:43,404 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:04:43,404 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 13:04:43,404 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 13:04:43,405 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:04:43,407 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 13:04:43,407 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-23 13:04:43,407 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2018-11-23 13:04:43,407 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 13:04:43,407 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2018-11-23 13:04:43,408 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 13:04:43,409 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 13:04:43,409 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2018-11-23 13:04:43,423 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 13:04:43,423 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2018-11-23 13:04:43,423 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2018-11-23 13:04:43,423 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 13:04:43,423 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2018-11-23 13:04:43,424 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-23 13:04:43,425 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2018-11-23 13:04:43,426 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2018-11-23 13:04:43,427 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 13:04:43,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:04:43 BoogieIcfgContainer [2018-11-23 13:04:43,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:04:43,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:04:43,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:04:43,436 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:04:43,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:41" (3/4) ... [2018-11-23 13:04:43,441 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:04:43,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:04:43,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-23 13:04:43,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:04:43,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 13:04:43,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 13:04:43,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 13:04:43,453 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:04:43,509 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/trex01_true-unreach-call_true-termination.i-witness.graphml [2018-11-23 13:04:43,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:04:43,511 INFO L168 Benchmark]: Toolchain (without parser) took 3436.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -675.3 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2018-11-23 13:04:43,513 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:04:43,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-23 13:04:43,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:04:43,515 INFO L168 Benchmark]: Boogie Preprocessor took 28.92 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:04:43,515 INFO L168 Benchmark]: RCFGBuilder took 752.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-23 13:04:43,516 INFO L168 Benchmark]: TraceAbstraction took 2221.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 79.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2018-11-23 13:04:43,516 INFO L168 Benchmark]: Witness Printer took 73.92 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:04:43,520 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.92 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 752.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2221.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 79.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * Witness Printer took 73.92 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 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: 16]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 1 SDslu, 33 SDs, 0 SdLazy, 8 SolverSat, 1 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 11 LocationsWithAnnotation, 16 PreInvPairs, 20 NumberOfFragments, 15 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 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...