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_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:30:36,304 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:30:36,306 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:30:36,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:30:36,323 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:30:36,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:30:36,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:30:36,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:30:36,331 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:30:36,332 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:30:36,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:30:36,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:30:36,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:30:36,338 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:30:36,342 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:30:36,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:30:36,344 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:30:36,345 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:30:36,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:30:36,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:30:36,361 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:30:36,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:30:36,369 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:30:36,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:30:36,370 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:30:36,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:30:36,374 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:30:36,375 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:30:36,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:30:36,379 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:30:36,379 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:30:36,381 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-23 11:30:36,385 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 11:30:36,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:30:36,408 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:30:36,408 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:30:36,411 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:30:36,414 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:30:36,414 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:30:36,414 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:30:36,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:30:36,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:30:36,415 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:30:36,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:30:36,415 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:30:36,415 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:30:36,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:30:36,416 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:30:36,416 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:30:36,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:30:36,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:30:36,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:30:36,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:30:36,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:30:36,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:30:36,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:30:36,419 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:30:36,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:30:36,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:30:36,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:30:36,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:30:36,421 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:30:36,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:30:36,422 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:30:36,422 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:30:36,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:30:36,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:30:36,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:30:36,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:30:36,519 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:30:36,519 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:30:36,520 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i [2018-11-23 11:30:36,576 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181c0d5a5/52d8c50614e44f42820cacc949c89fe5/FLAGcabdd3c40 [2018-11-23 11:30:37,000 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:30:37,001 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i [2018-11-23 11:30:37,006 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181c0d5a5/52d8c50614e44f42820cacc949c89fe5/FLAGcabdd3c40 [2018-11-23 11:30:37,383 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181c0d5a5/52d8c50614e44f42820cacc949c89fe5 [2018-11-23 11:30:37,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:30:37,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:30:37,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:30:37,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:30:37,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:30:37,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e445f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37, skipping insertion in model container [2018-11-23 11:30:37,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:30:37,446 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:30:37,700 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:30:37,704 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:30:37,719 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:30:37,735 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:30:37,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37 WrapperNode [2018-11-23 11:30:37,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:30:37,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:30:37,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:30:37,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:30:37,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:30:37,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:30:37,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:30:37,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:30:37,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (1/1) ... [2018-11-23 11:30:37,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:30:37,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:30:37,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:30:37,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:30:37,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (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 11:30:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:30:37,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:30:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:30:37,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:30:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:30:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:30:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 11:30:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 11:30:38,279 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:30:38,279 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 11:30:38,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:30:38 BoogieIcfgContainer [2018-11-23 11:30:38,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:30:38,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:30:38,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:30:38,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:30:38,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:30:37" (1/3) ... [2018-11-23 11:30:38,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379cc21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:30:38, skipping insertion in model container [2018-11-23 11:30:38,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:37" (2/3) ... [2018-11-23 11:30:38,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379cc21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:30:38, skipping insertion in model container [2018-11-23 11:30:38,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:30:38" (3/3) ... [2018-11-23 11:30:38,288 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_true-unreach-call2_true-termination.i [2018-11-23 11:30:38,300 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:30:38,309 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:30:38,329 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:30:38,363 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:30:38,364 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:30:38,364 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:30:38,364 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:30:38,365 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:30:38,365 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:30:38,365 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:30:38,365 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:30:38,366 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:30:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 11:30:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:30:38,392 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:30:38,393 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:30:38,396 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:30:38,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:30:38,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2018-11-23 11:30:38,405 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:30:38,406 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:30:38,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:30:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:30:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:30:38,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:30:38,669 INFO L256 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2018-11-23 11:30:38,673 INFO L273 TraceCheckUtils]: 1: Hoare triple {20#true} assume true; {20#true} is VALID [2018-11-23 11:30:38,674 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {20#true} {20#true} #31#return; {20#true} is VALID [2018-11-23 11:30:38,674 INFO L256 TraceCheckUtils]: 3: Hoare triple {20#true} call #t~ret1 := main(); {20#true} is VALID [2018-11-23 11:30:38,675 INFO L273 TraceCheckUtils]: 4: Hoare triple {20#true} havoc ~x~0; {20#true} is VALID [2018-11-23 11:30:38,684 INFO L273 TraceCheckUtils]: 5: Hoare triple {20#true} assume !~bvult32(~x~0, 268435455bv32); {40#(not (bvult main_~x~0 (_ bv268435455 32)))} is VALID [2018-11-23 11:30:38,692 INFO L256 TraceCheckUtils]: 6: Hoare triple {40#(not (bvult main_~x~0 (_ bv268435455 32)))} call __VERIFIER_assert((if ~bvuge32(~x~0, 268435455bv32) then 1bv32 else 0bv32)); {44#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:30:38,694 INFO L273 TraceCheckUtils]: 7: Hoare triple {44#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} ~cond := #in~cond; {48#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:30:38,711 INFO L273 TraceCheckUtils]: 8: Hoare triple {48#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~cond; {21#false} is VALID [2018-11-23 11:30:38,712 INFO L273 TraceCheckUtils]: 9: Hoare triple {21#false} assume !false; {21#false} is VALID [2018-11-23 11:30:38,715 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 11:30:38,715 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:30:38,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:30:38,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 11:30:38,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 11:30:38,730 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:30:38,733 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 11:30:38,794 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:30:38,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 11:30:38,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 11:30:38,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 11:30:38,805 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-23 11:30:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:30:39,338 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-23 11:30:39,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 11:30:39,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 11:30:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:30:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:30:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-11-23 11:30:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:30:39,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-11-23 11:30:39,354 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 29 transitions. [2018-11-23 11:30:39,430 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:30:39,437 INFO L225 Difference]: With dead ends: 26 [2018-11-23 11:30:39,437 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:30:39,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:30:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:30:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:30:39,464 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:30:39,464 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:30:39,465 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:30:39,465 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:30:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:30:39,466 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:30:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:30:39,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:30:39,467 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:30:39,467 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:30:39,467 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:30:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:30:39,467 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:30:39,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:30:39,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:30:39,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:30:39,468 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:30:39,468 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:30:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:30:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:30:39,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-23 11:30:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:30:39,471 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:30:39,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 11:30:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:30:39,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:30:39,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:30:39,802 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 11:30:39,802 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:30:39,802 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:30:39,802 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:30:39,802 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:30:39,803 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:30:39,803 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 14) the Hoare annotation is: true [2018-11-23 11:30:39,803 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 14) no Hoare annotation was computed. [2018-11-23 11:30:39,803 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 14) no Hoare annotation was computed. [2018-11-23 11:30:39,803 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 12) the Hoare annotation is: true [2018-11-23 11:30:39,804 INFO L444 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: (not (bvult main_~x~0 (_ bv268435455 32))) [2018-11-23 11:30:39,804 INFO L448 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-11-23 11:30:39,804 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-11-23 11:30:39,804 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-11-23 11:30:39,805 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-23 11:30:39,805 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-23 11:30:39,805 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-23 11:30:39,807 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:30:39,807 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:30:39,807 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:30:39,807 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:30:39,811 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:30:39,812 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:30:39,812 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:30:39,812 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:30:39,812 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:30:39,812 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:30:39,813 WARN L170 areAnnotationChecker]: L3-2 has no Hoare annotation [2018-11-23 11:30:39,813 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:30:39,813 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 11:30:39,813 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:30:39,813 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 11:30:39,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:30:39 BoogieIcfgContainer [2018-11-23 11:30:39,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:30:39,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:30:39,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:30:39,820 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:30:39,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:30:38" (3/4) ... [2018-11-23 11:30:39,825 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:30:39,832 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:30:39,833 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:30:39,833 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 11:30:39,837 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 11:30:39,838 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 11:30:39,838 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:30:39,880 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-acceleration/simple_true-unreach-call2_true-termination.i-witness.graphml [2018-11-23 11:30:39,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:30:39,882 INFO L168 Benchmark]: Toolchain (without parser) took 2483.87 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:30:39,884 INFO L168 Benchmark]: CDTParser took 0.22 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 11:30:39,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.92 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 11:30:39,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.81 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 11:30:39,886 INFO L168 Benchmark]: Boogie Preprocessor took 28.93 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 11:30:39,886 INFO L168 Benchmark]: RCFGBuilder took 494.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2018-11-23 11:30:39,887 INFO L168 Benchmark]: TraceAbstraction took 1538.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2018-11-23 11:30:39,888 INFO L168 Benchmark]: Witness Printer took 60.74 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:30:39,892 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 0.22 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 335.92 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 19.81 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 28.93 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 494.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1538.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. * Witness Printer took 60.74 ms. Allocated memory is still 2.2 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: 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: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 29 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 10 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...