java -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.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:54:51,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:54:51,314 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:54:51,331 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:54:51,331 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:54:51,332 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:54:51,333 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:54:51,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:54:51,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:54:51,340 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:54:51,341 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:54:51,341 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:54:51,344 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:54:51,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:54:51,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:54:51,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:54:51,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:54:51,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:54:51,361 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:54:51,366 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:54:51,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:54:51,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:54:51,375 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:54:51,375 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:54:51,376 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:54:51,376 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:54:51,378 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:54:51,380 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:54:51,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:54:51,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:54:51,382 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:54:51,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 22:54:51,383 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 22:54:51,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 22:54:51,384 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 22:54:51,385 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 22:54:51,385 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:54:51,400 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:54:51,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:54:51,401 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:54:51,401 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:54:51,402 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:54:51,402 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:54:51,402 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:54:51,403 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:54:51,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:54:51,403 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:54:51,403 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:54:51,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:54:51,404 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:54:51,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:54:51,404 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:54:51,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:54:51,405 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:54:51,405 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:54:51,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:54:51,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:54:51,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:54:51,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:54:51,406 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:54:51,406 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:54:51,406 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:54:51,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:54:51,407 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:54:51,407 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:54:51,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:54:51,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:54:51,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:54:51,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:54:51,480 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:54:51,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-06 22:54:51,540 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcb13bb/d16b29044f554a9991c1fa2dd302d967/FLAG7454942ae [2018-11-06 22:54:51,959 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:54:51,959 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-06 22:54:51,966 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcb13bb/d16b29044f554a9991c1fa2dd302d967/FLAG7454942ae [2018-11-06 22:54:51,980 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bcb13bb/d16b29044f554a9991c1fa2dd302d967 [2018-11-06 22:54:51,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:54:51,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:54:51,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:54:51,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:54:51,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:54:51,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:51" (1/1) ... [2018-11-06 22:54:52,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45dc7a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:51, skipping insertion in model container [2018-11-06 22:54:52,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:51" (1/1) ... [2018-11-06 22:54:52,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:54:52,041 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:54:52,269 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:54:52,273 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:54:52,295 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:54:52,308 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:54:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52 WrapperNode [2018-11-06 22:54:52,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:54:52,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:54:52,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:54:52,309 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:54:52,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:54:52,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:54:52,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:54:52,344 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:54:52,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (1/1) ... [2018-11-06 22:54:52,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:54:52,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:54:52,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:54:52,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:54:52,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (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 [2018-11-06 22:54:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:54:52,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:54:52,799 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:54:52,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:52 BoogieIcfgContainer [2018-11-06 22:54:52,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:54:52,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:54:52,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:54:52,810 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:54:52,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:51" (1/3) ... [2018-11-06 22:54:52,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a617cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:52, skipping insertion in model container [2018-11-06 22:54:52,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:52" (2/3) ... [2018-11-06 22:54:52,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a617cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:52, skipping insertion in model container [2018-11-06 22:54:52,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:52" (3/3) ... [2018-11-06 22:54:52,820 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-06 22:54:52,837 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:54:52,847 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:54:52,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:54:52,915 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:54:52,916 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:54:52,916 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:54:52,916 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:54:52,916 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:54:52,916 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:54:52,917 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:54:52,917 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:54:52,917 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:54:52,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-06 22:54:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:54:52,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:54:52,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:54:52,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:54:52,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:54:52,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1804535397, now seen corresponding path program 1 times [2018-11-06 22:54:52,951 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:54:52,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:54:52,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:54:52,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:54:52,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:54:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:54:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:54:53,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:54:53,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:54:53,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:54:53,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:54:53,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:54:53,171 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-11-06 22:54:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:54:53,339 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2018-11-06 22:54:53,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:54:53,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-06 22:54:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:54:53,359 INFO L225 Difference]: With dead ends: 29 [2018-11-06 22:54:53,359 INFO L226 Difference]: Without dead ends: 16 [2018-11-06 22:54:53,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:54:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-06 22:54:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2018-11-06 22:54:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-06 22:54:53,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-11-06 22:54:53,418 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2018-11-06 22:54:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:54:53,419 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-06 22:54:53,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:54:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-11-06 22:54:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-06 22:54:53,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:54:53,420 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:54:53,421 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:54:53,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:54:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash -527269500, now seen corresponding path program 1 times [2018-11-06 22:54:53,422 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:54:53,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:54:53,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:54:53,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:54:53,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:54:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:54:53,731 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2018-11-06 22:54:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:54:53,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:54:53,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:54:53,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:54:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:54:53,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:54:53,754 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2018-11-06 22:54:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:54:54,664 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2018-11-06 22:54:54,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:54:54,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-06 22:54:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:54:54,666 INFO L225 Difference]: With dead ends: 25 [2018-11-06 22:54:54,666 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:54:54,667 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:54:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:54:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:54:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:54:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:54:54,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-06 22:54:54,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:54:54,668 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:54:54,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:54:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:54:54,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:54:54,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:54:54,764 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:54:54,764 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2018-11-06 22:54:54,765 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2018-11-06 22:54:54,765 INFO L428 ceAbstractionStarter]: At program point L73(lines 7 76) the Hoare annotation is: true [2018-11-06 22:54:54,765 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:54:54,765 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:54:54,765 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-06 22:54:54,766 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:54:54,766 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-11-06 22:54:54,766 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2018-11-06 22:54:54,766 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2018-11-06 22:54:54,766 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2018-11-06 22:54:54,767 INFO L421 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~main__y~0 1) (<= 1 ULTIMATE.start_main_~main__y~0)) (and (= ULTIMATE.start_main_~main__y~0 0) (<= (* 36893488151714070528 (div (+ (* 1431655765 ULTIMATE.start_main_~main__x~0) 4294967296) 4294967296)) (+ (* 12297829381041378645 ULTIMATE.start_main_~main__x~0) 12297829382473034411)))) [2018-11-06 22:54:54,767 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2018-11-06 22:54:54,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:54:54 BoogieIcfgContainer [2018-11-06 22:54:54,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:54:54,783 INFO L168 Benchmark]: Toolchain (without parser) took 2791.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -748.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:54:54,784 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. [2018-11-06 22:54:54,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.60 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. [2018-11-06 22:54:54,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.53 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. [2018-11-06 22:54:54,787 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 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. [2018-11-06 22:54:54,787 INFO L168 Benchmark]: RCFGBuilder took 438.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:54:54,788 INFO L168 Benchmark]: TraceAbstraction took 1981.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2018-11-06 22:54:54,793 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.60 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 34.53 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 17.46 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 438.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1981.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: (main__y <= 1 && 1 <= main__y) || (main__y == 0 && 36893488151714070528 * ((1431655765 * main__x + 4294967296) / 4294967296) <= 12297829381041378645 * main__x + 12297829382473034411) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 26 SDs, 0 SdLazy, 22 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 28 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...