java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 20:03:40,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 20:03:40,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 20:03:40,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 20:03:40,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 20:03:40,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 20:03:40,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 20:03:40,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 20:03:40,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 20:03:40,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 20:03:40,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 20:03:40,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 20:03:40,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 20:03:40,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 20:03:40,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 20:03:40,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 20:03:40,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 20:03:40,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 20:03:40,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 20:03:40,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 20:03:40,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 20:03:40,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 20:03:40,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 20:03:40,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 20:03:40,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 20:03:40,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 20:03:40,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 20:03:40,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 20:03:40,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 20:03:40,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 20:03:40,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 20:03:40,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 20:03:40,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 20:03:40,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 20:03:40,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 20:03:40,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 20:03:40,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-03 20:03:40,325 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 20:03:40,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 20:03:40,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 20:03:40,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 20:03:40,328 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 20:03:40,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 20:03:40,328 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 20:03:40,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 20:03:40,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 20:03:40,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 20:03:40,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 20:03:40,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 20:03:40,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 20:03:40,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 20:03:40,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 20:03:40,330 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 20:03:40,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 20:03:40,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 20:03:40,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 20:03:40,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 20:03:40,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 20:03:40,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 20:03:40,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 20:03:40,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 20:03:40,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 20:03:40,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 20:03:40,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 20:03:40,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 20:03:40,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 20:03:40,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 20:03:40,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 20:03:40,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 20:03:40,379 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 20:03:40,379 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 20:03:40,380 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-09-03 20:03:40,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ee05edd/25c246e9cd534256b3b5a89f07e05e5d/FLAG35b118ae4 [2019-09-03 20:03:40,888 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 20:03:40,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-09-03 20:03:40,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ee05edd/25c246e9cd534256b3b5a89f07e05e5d/FLAG35b118ae4 [2019-09-03 20:03:41,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ee05edd/25c246e9cd534256b3b5a89f07e05e5d [2019-09-03 20:03:41,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 20:03:41,268 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 20:03:41,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 20:03:41,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 20:03:41,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 20:03:41,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b85e982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41, skipping insertion in model container [2019-09-03 20:03:41,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,286 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 20:03:41,305 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 20:03:41,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:03:41,482 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 20:03:41,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:03:41,519 INFO L192 MainTranslator]: Completed translation [2019-09-03 20:03:41,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41 WrapperNode [2019-09-03 20:03:41,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 20:03:41,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 20:03:41,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 20:03:41,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 20:03:41,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (1/1) ... [2019-09-03 20:03:41,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 20:03:41,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 20:03:41,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 20:03:41,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 20:03:41,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (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 [2019-09-03 20:03:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 20:03:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 20:03:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 20:03:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 20:03:41,894 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 20:03:41,894 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-03 20:03:41,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:03:41 BoogieIcfgContainer [2019-09-03 20:03:41,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 20:03:41,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 20:03:41,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 20:03:41,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 20:03:41,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 08:03:41" (1/3) ... [2019-09-03 20:03:41,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7301481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:03:41, skipping insertion in model container [2019-09-03 20:03:41,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:03:41" (2/3) ... [2019-09-03 20:03:41,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7301481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:03:41, skipping insertion in model container [2019-09-03 20:03:41,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:03:41" (3/3) ... [2019-09-03 20:03:41,903 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2019-09-03 20:03:41,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 20:03:41,919 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 20:03:41,934 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 20:03:41,965 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 20:03:41,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 20:03:41,966 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 20:03:41,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 20:03:41,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 20:03:41,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 20:03:41,967 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 20:03:41,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 20:03:41,967 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 20:03:41,986 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-03 20:03:41,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-03 20:03:41,992 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:03:41,993 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:03:41,995 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:03:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:03:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash 964689295, now seen corresponding path program 1 times [2019-09-03 20:03:42,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 20:03:42,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 20:03:42,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:03:42,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:03:42,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:03:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:03:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:03:42,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:03:42,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-03 20:03:42,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-03 20:03:42,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-03 20:03:42,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-03 20:03:42,235 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-09-03 20:03:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:03:42,337 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-09-03 20:03:42,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-03 20:03:42,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-03 20:03:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:03:42,349 INFO L225 Difference]: With dead ends: 34 [2019-09-03 20:03:42,350 INFO L226 Difference]: Without dead ends: 20 [2019-09-03 20:03:42,353 INFO L628 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 [2019-09-03 20:03:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-09-03 20:03:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2019-09-03 20:03:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-09-03 20:03:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-09-03 20:03:42,386 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-09-03 20:03:42,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:03:42,387 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-09-03 20:03:42,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-03 20:03:42,387 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-09-03 20:03:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-03 20:03:42,388 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:03:42,388 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:03:42,389 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:03:42,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:03:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2096975293, now seen corresponding path program 1 times [2019-09-03 20:03:42,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 20:03:42,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 20:03:42,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:03:42,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:03:42,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:03:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:03:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:03:42,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:03:42,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-03 20:03:42,573 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-03 20:03:42,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-03 20:03:42,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-03 20:03:42,574 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-09-03 20:03:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:03:42,641 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2019-09-03 20:03:42,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-03 20:03:42,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-09-03 20:03:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:03:42,643 INFO L225 Difference]: With dead ends: 29 [2019-09-03 20:03:42,643 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 20:03:42,644 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-03 20:03:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 20:03:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 20:03:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 20:03:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 20:03:42,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-09-03 20:03:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:03:42,646 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 20:03:42,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-03 20:03:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 20:03:42,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 20:03:42,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-03 20:03:42,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-03 20:03:42,683 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-03 20:03:42,684 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-03 20:03:42,684 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-03 20:03:42,684 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-03 20:03:42,684 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-03 20:03:42,684 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-03 20:03:42,685 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2019-09-03 20:03:42,685 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 7 76) no Hoare annotation was computed. [2019-09-03 20:03:42,685 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2019-09-03 20:03:42,685 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 7 76) no Hoare annotation was computed. [2019-09-03 20:03:42,685 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2019-09-03 20:03:42,686 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 7 76) the Hoare annotation is: true [2019-09-03 20:03:42,686 INFO L443 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-09-03 20:03:42,686 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-09-03 20:03:42,686 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2019-09-03 20:03:42,686 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2019-09-03 20:03:42,687 INFO L439 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (<= (div main_~main__y~0 4294967296) 0) (<= 1 main_~main__y~0)) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ (* (- 4294967296) .cse0) main_~main__x~0) 3)))))) [2019-09-03 20:03:42,687 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2019-09-03 20:03:42,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 08:03:42 BoogieIcfgContainer [2019-09-03 20:03:42,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 20:03:42,706 INFO L168 Benchmark]: Toolchain (without parser) took 1436.55 ms. Allocated memory was 130.0 MB in the beginning and 196.6 MB in the end (delta: 66.6 MB). Free memory was 86.2 MB in the beginning and 117.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,707 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.11 ms. Allocated memory is still 130.0 MB. Free memory was 86.0 MB in the beginning and 76.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,709 INFO L168 Benchmark]: Boogie Preprocessor took 118.77 ms. Allocated memory was 130.0 MB in the beginning and 196.6 MB in the end (delta: 66.6 MB). Free memory was 76.0 MB in the beginning and 173.4 MB in the end (delta: -97.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,710 INFO L168 Benchmark]: RCFGBuilder took 255.41 ms. Allocated memory is still 196.6 MB. Free memory was 173.4 MB in the beginning and 160.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,711 INFO L168 Benchmark]: TraceAbstraction took 805.97 ms. Allocated memory is still 196.6 MB. Free memory was 160.2 MB in the beginning and 117.2 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-09-03 20:03:42,715 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.11 ms. Allocated memory is still 130.0 MB. Free memory was 86.0 MB in the beginning and 76.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.77 ms. Allocated memory was 130.0 MB in the beginning and 196.6 MB in the end (delta: 66.6 MB). Free memory was 76.0 MB in the beginning and 173.4 MB in the end (delta: -97.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.41 ms. Allocated memory is still 196.6 MB. Free memory was 173.4 MB in the beginning and 160.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 805.97 ms. Allocated memory is still 196.6 MB. Free memory was 160.2 MB in the beginning and 117.2 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 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 / 4294967296 <= 0 && 1 <= main__y) || main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((-4294967296 * (main__x / 4294967296) + main__x) / 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 9 SDslu, 40 SDs, 0 SdLazy, 21 SolverSat, 7 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=19occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 33 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1250 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...